-
Notifications
You must be signed in to change notification settings - Fork 3
/
Copy pathvowpalwabbit.DFtoVW.html
1087 lines (1033 loc) · 65.4 KB
/
vowpalwabbit.DFtoVW.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>vowpalwabbit.DFtoVW — VowpalWabbit 8.11.0 documentation</title>
<link rel="stylesheet" href="_static/classic.css" type="text/css" />
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
<script type="text/javascript" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></script>
<script type="text/javascript" src="_static/jquery.js"></script>
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<script type="text/javascript" src="_static/language_data.js"></script>
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
</head><body>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">VowpalWabbit 8.11.0 documentation</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<div class="section" id="module-vowpalwabbit.DFtoVW">
<span id="vowpalwabbit-dftovw"></span><h1>vowpalwabbit.DFtoVW<a class="headerlink" href="#module-vowpalwabbit.DFtoVW" title="Permalink to this headline">¶</a></h1>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.AttributeDescriptor">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">AttributeDescriptor</code><span class="sig-paren">(</span><em>attribute_name</em>, <em>expected_type</em>, <em>min_value=None</em>, <em>max_value=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.AttributeDescriptor" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.AttributeDescriptor.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>attribute_name</em>, <em>expected_type</em>, <em>min_value=None</em>, <em>max_value=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.AttributeDescriptor.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize an AttributeDescriptor instance</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>attribute_name: str</strong></dt>
<dd><p class="first last">The name of the attribute.</p>
</dd>
<dt><strong>expected_type: tuple</strong></dt>
<dd><p class="first last">The expected type of the attribute.</p>
</dd>
<dt><strong>min_value: str/int/float</strong></dt>
<dd><p class="first last">The minimum value of the attribute.</p>
</dd>
<dt><strong>max_value: str/int/float</strong></dt>
<dd><p class="first last">The maximum value of the attribute.</p>
</dd>
<dt><strong>Raises</strong></dt>
<dd></dd>
<dt><strong>——</strong></dt>
<dd></dd>
<dt><strong>TypeError</strong></dt>
<dd><p class="first last">If one of the arguments passed is not of valid type.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.ContextualbanditLabel">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">ContextualbanditLabel</code><span class="sig-paren">(</span><em>action</em>, <em>cost</em>, <em>probability</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The contextual bandit label type for the constructor of DFtoVW.</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel.process" title="vowpalwabbit.DFtoVW.ContextualbanditLabel.process"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process</span></code></a>(self, df)</td>
<td>Returns the ContextualbanditLabel string representation.</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.ContextualbanditLabel.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>action</em>, <em>cost</em>, <em>probability</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a ContextualbanditLabel instance.
Parameters
———-
action: str</p>
<blockquote>
<div>The action taken where we observed the cost.</div></blockquote>
<dl class="docutils">
<dt>cost: str</dt>
<dd>The cost observed for this action (lower is better)</dd>
<dt>probability: str</dt>
<dd>The probability of the exploration policy to choose this action when collecting the data.</dd>
</dl>
<p>self : ContextualbanditLabel</p>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.ContextualbanditLabel.action">
<code class="descname">action</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel.action" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.ContextualbanditLabel.cost">
<code class="descname">cost</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel.cost" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.ContextualbanditLabel.probability">
<code class="descname">probability</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel.probability" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.ContextualbanditLabel.process">
<code class="descname">process</code><span class="sig-paren">(</span><em>self</em>, <em>df</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.ContextualbanditLabel.process" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the ContextualbanditLabel string representation.
Parameters
———-
df : pandas.DataFrame</p>
<blockquote>
<div>The dataframe from which to select the column(s).</div></blockquote>
<dl class="docutils">
<dt>pandas.Series</dt>
<dd>The ContextualbanditLabel string representation.</dd>
</dl>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.DFtoVW">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">DFtoVW</code><span class="sig-paren">(</span><em>df</em>, <em>features=None</em>, <em>namespaces=None</em>, <em>label=None</em>, <em>tag=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert a pandas DataFrame to a suitable VW format.
Instances of this class are built with classes such as SimpleLabel,
MulticlassLabel, Feature or Namespace.</p>
<p>The class also provided a convenience constructor to initialize the class
based on the target/features column names only.</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.check_columns_type_and_values" title="vowpalwabbit.DFtoVW.DFtoVW.check_columns_type_and_values"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_columns_type_and_values</span></code></a>(self)</td>
<td>Check columns type and values range.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.check_features_type" title="vowpalwabbit.DFtoVW.DFtoVW.check_features_type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_features_type</span></code></a>(self, features)</td>
<td>Check if the features argument is of type Feature.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.check_instance_columns" title="vowpalwabbit.DFtoVW.DFtoVW.check_instance_columns"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_instance_columns</span></code></a>(self, instance)</td>
<td>Check the columns type and values of a given instance.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.check_label_type" title="vowpalwabbit.DFtoVW.DFtoVW.check_label_type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_label_type</span></code></a>(self)</td>
<td>Check label type.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.check_missing_columns_df" title="vowpalwabbit.DFtoVW.DFtoVW.check_missing_columns_df"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_missing_columns_df</span></code></a>(self)</td>
<td>Check if the columns are in the dataframe.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.check_namespaces_type" title="vowpalwabbit.DFtoVW.DFtoVW.check_namespaces_type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_namespaces_type</span></code></a>(self)</td>
<td>Check if namespaces arguments are of type Namespace.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.convert_df" title="vowpalwabbit.DFtoVW.DFtoVW.convert_df"><code class="xref py py-obj docutils literal notranslate"><span class="pre">convert_df</span></code></a>(self)</td>
<td>Main method that converts the dataframe to the VW format.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.empty_col" title="vowpalwabbit.DFtoVW.DFtoVW.empty_col"><code class="xref py py-obj docutils literal notranslate"><span class="pre">empty_col</span></code></a>(self)</td>
<td>Create an empty string column.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.from_colnames" title="vowpalwabbit.DFtoVW.DFtoVW.from_colnames"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_colnames</span></code></a>(cls, y, x, df[, label_type])</td>
<td>Build DFtoVW instance using column names only.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.process_features" title="vowpalwabbit.DFtoVW.DFtoVW.process_features"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process_features</span></code></a>(self, features)</td>
<td>Process the features (of a namespace) into a unique column.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.process_label_and_tag" title="vowpalwabbit.DFtoVW.DFtoVW.process_label_and_tag"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process_label_and_tag</span></code></a>(self)</td>
<td>Process the label and tag into a unique column.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.raise_missing_col_error" title="vowpalwabbit.DFtoVW.DFtoVW.raise_missing_col_error"><code class="xref py py-obj docutils literal notranslate"><span class="pre">raise_missing_col_error</span></code></a>(self, missing_cols_dict)</td>
<td>Raises error if some columns are missing.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.DFtoVW.set_namespaces" title="vowpalwabbit.DFtoVW.DFtoVW.set_namespaces"><code class="xref py py-obj docutils literal notranslate"><span class="pre">set_namespaces</span></code></a>(self, namespaces, features)</td>
<td>Set namespaces attributes</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>df</em>, <em>features=None</em>, <em>namespaces=None</em>, <em>label=None</em>, <em>tag=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a DFtoVW instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>df</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.DataFrame</span></dt>
<dd><p class="first last">The dataframe to convert to VW input format.</p>
</dd>
<dt><strong>features: Feature/list of Feature</strong></dt>
<dd><p class="first last">One or more Feature object(s).</p>
</dd>
<dt><strong>namespaces</strong> <span class="classifier-delimiter">:</span> <span class="classifier">Namespace/list of Namespace</span></dt>
<dd><p class="first last">One or more Namespace object(s), each of being composed of one or
more Feature object(s).</p>
</dd>
<dt><strong>label</strong> <span class="classifier-delimiter">:</span> <span class="classifier">SimpleLabel/MulticlassLabel/MultiLabel</span></dt>
<dd><p class="first last">The label.</p>
</dd>
<dt><strong>tag</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str/int/float</span></dt>
<dd><p class="first last">The tag (used as identifiers for examples).</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>self</strong> <span class="classifier-delimiter">:</span> <span class="classifier">DFtoVW</span></dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">vowpalwabbit.DFtoVW</span> <span class="kn">import</span> <span class="n">DFtoVW</span><span class="p">,</span> <span class="n">SimpleLabel</span><span class="p">,</span> <span class="n">Feature</span><span class="p">,</span> <span class="n">Namespace</span>
<span class="gp">>>> </span><span class="kn">import</span> <span class="nn">pandas</span> <span class="k">as</span> <span class="nn">pd</span>
</pre></div>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">df</span> <span class="o">=</span> <span class="n">pd</span><span class="o">.</span><span class="n">DataFrame</span><span class="p">({</span><span class="s2">"y"</span><span class="p">:</span> <span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">"a"</span><span class="p">:</span> <span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="s2">"b"</span><span class="p">:</span> <span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="s2">"c"</span><span class="p">:</span> <span class="p">[</span><span class="mi">4</span><span class="p">]})</span>
<span class="gp">>>> </span><span class="n">conv1</span> <span class="o">=</span> <span class="n">DFtoVW</span><span class="p">(</span><span class="n">df</span><span class="o">=</span><span class="n">df</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">label</span><span class="o">=</span><span class="n">SimpleLabel</span><span class="p">(</span><span class="s2">"y"</span><span class="p">),</span>
<span class="gp">... </span> <span class="n">features</span><span class="o">=</span><span class="n">Feature</span><span class="p">(</span><span class="s2">"a"</span><span class="p">))</span>
<span class="gp">>>> </span><span class="n">conv1</span><span class="o">.</span><span class="n">convert_df</span><span class="p">()</span>
<span class="go">['1 | a:2']</span>
</pre></div>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">conv2</span> <span class="o">=</span> <span class="n">DFtoVW</span><span class="p">(</span><span class="n">df</span><span class="o">=</span><span class="n">df</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">label</span><span class="o">=</span><span class="n">SimpleLabel</span><span class="p">(</span><span class="s2">"y"</span><span class="p">),</span>
<span class="gp">... </span> <span class="n">features</span><span class="o">=</span><span class="p">[</span><span class="n">Feature</span><span class="p">(</span><span class="n">col</span><span class="p">)</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="p">[</span><span class="s2">"a"</span><span class="p">,</span> <span class="s2">"b"</span><span class="p">]])</span>
<span class="gp">>>> </span><span class="n">conv2</span><span class="o">.</span><span class="n">convert_df</span><span class="p">()</span>
<span class="go">['1 | a:2 b:3']</span>
</pre></div>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">conv3</span> <span class="o">=</span> <span class="n">DFtoVW</span><span class="p">(</span><span class="n">df</span><span class="o">=</span><span class="n">df</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">label</span><span class="o">=</span><span class="n">SimpleLabel</span><span class="p">(</span><span class="s2">"y"</span><span class="p">),</span>
<span class="gp">... </span> <span class="n">namespaces</span><span class="o">=</span><span class="n">Namespace</span><span class="p">(</span>
<span class="gp">... </span> <span class="n">name</span><span class="o">=</span><span class="s2">"DoubleIt"</span><span class="p">,</span> <span class="n">value</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">features</span><span class="o">=</span><span class="n">Feature</span><span class="p">(</span><span class="n">value</span><span class="o">=</span><span class="s2">"a"</span><span class="p">,</span> <span class="n">rename_feature</span><span class="o">=</span><span class="s2">"feat_a"</span><span class="p">)))</span>
<span class="gp">>>> </span><span class="n">conv3</span><span class="o">.</span><span class="n">convert_df</span><span class="p">()</span>
<span class="go">['1 |DoubleIt:2 feat_a:2']</span>
</pre></div>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">conv4</span> <span class="o">=</span> <span class="n">DFtoVW</span><span class="p">(</span><span class="n">df</span><span class="o">=</span><span class="n">df</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">label</span><span class="o">=</span><span class="n">SimpleLabel</span><span class="p">(</span><span class="s2">"y"</span><span class="p">),</span>
<span class="gp">... </span> <span class="n">namespaces</span><span class="o">=</span><span class="p">[</span><span class="n">Namespace</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s2">"NS1"</span><span class="p">,</span> <span class="n">features</span><span class="o">=</span><span class="p">[</span><span class="n">Feature</span><span class="p">(</span><span class="n">col</span><span class="p">)</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="p">[</span><span class="s2">"a"</span><span class="p">,</span> <span class="s2">"c"</span><span class="p">]]),</span>
<span class="gp">... </span> <span class="n">Namespace</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s2">"NS2"</span><span class="p">,</span> <span class="n">features</span><span class="o">=</span><span class="n">Feature</span><span class="p">(</span><span class="s2">"b"</span><span class="p">))])</span>
<span class="gp">>>> </span><span class="n">conv4</span><span class="o">.</span><span class="n">convert_df</span><span class="p">()</span>
<span class="go">['1 |NS1 a:2 c:4 |NS2 b:3']</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.check_columns_type_and_values">
<code class="descname">check_columns_type_and_values</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.check_columns_type_and_values" title="Permalink to this definition">¶</a></dt>
<dd><p>Check columns type and values range.</p>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.check_features_type">
<code class="descname">check_features_type</code><span class="sig-paren">(</span><em>self</em>, <em>features</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.check_features_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if the features argument is of type Feature.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>features: (list of) Feature,</strong></dt>
<dd><p class="first last">The features argument to check.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>TypeError</dt>
<dd><p class="first last">If the features is not a Feature of a list of Feature.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.check_instance_columns">
<code class="descname">check_instance_columns</code><span class="sig-paren">(</span><em>self</em>, <em>instance</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.check_instance_columns" title="Permalink to this definition">¶</a></dt>
<dd><p>Check the columns type and values of a given instance.
The method iterate through the attributes and look for _Col type
attribute. Once found, the method use the _Col methods to check the
type and the value range of the column. Also, the instance type in
which the errors occur are prepend to the error message to be more
explicit about where the error occurs in the formula.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>TypeError</dt>
<dd><p class="first last">If a column is not of valid type.</p>
</dd>
<dt>ValueError</dt>
<dd><p class="first last">If a column values are not in the valid range.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.check_label_type">
<code class="descname">check_label_type</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.check_label_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Check label type.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>TypeError</dt>
<dd><p class="first last">If label is not of type SimpleLabel or MulticlassLabel.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.check_missing_columns_df">
<code class="descname">check_missing_columns_df</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.check_missing_columns_df" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if the columns are in the dataframe.</p>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.check_namespaces_type">
<code class="descname">check_namespaces_type</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.check_namespaces_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if namespaces arguments are of type Namespace.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>TypeError</dt>
<dd><p class="first last">If namespaces are not of type Namespace or list of Namespace.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.convert_df">
<code class="descname">convert_df</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.convert_df" title="Permalink to this definition">¶</a></dt>
<dd><p>Main method that converts the dataframe to the VW format.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>list</dt>
<dd><p class="first last">The list of parsed lines in VW format.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.empty_col">
<code class="descname">empty_col</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.empty_col" title="Permalink to this definition">¶</a></dt>
<dd><p>Create an empty string column.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>pandas.Series</dt>
<dd><p class="first last">A column of empty string with as much rows as the input dataframe.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="classmethod">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.from_colnames">
<em class="property">classmethod </em><code class="descname">from_colnames</code><span class="sig-paren">(</span><em>cls</em>, <em>y</em>, <em>x</em>, <em>df</em>, <em>label_type='simple_label'</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.from_colnames" title="Permalink to this definition">¶</a></dt>
<dd><p>Build DFtoVW instance using column names only.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>y</strong> <span class="classifier-delimiter">:</span> <span class="classifier">(list of) any hashable type (str/int/float/tuple/etc.) representing a column name</span></dt>
<dd><p class="first last">The column for the label.</p>
</dd>
<dt><strong>x</strong> <span class="classifier-delimiter">:</span> <span class="classifier">(list of) any hashable type (str/int/float/tuple/etc.) representing a column name</span></dt>
<dd><p class="first last">The column(s) for the feature(s).</p>
</dd>
<dt><strong>df</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.DataFrame</span></dt>
<dd><p class="first last">The dataframe used.</p>
</dd>
<dt><strong>label_type: str (default: ‘simple_label’)</strong></dt>
<dd><p class="first last">The type of the label. Available labels: ‘simple_label’, ‘multiclass_label’, ‘multi_label’.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first docutils">
<dt>DFtoVW</dt>
<dd><p class="first last">A initialized DFtoVW instance.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>TypeError</dt>
<dd><p class="first last">If argument label is not of valid type.</p>
</dd>
<dt>ValueError</dt>
<dd><p class="first last">If argument label_type is not valid.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">vowpalwabbit.DFtoVW</span> <span class="kn">import</span> <span class="n">DFtoVW</span>
<span class="gp">>>> </span><span class="kn">import</span> <span class="nn">pandas</span> <span class="k">as</span> <span class="nn">pd</span>
<span class="gp">>>> </span><span class="n">df</span> <span class="o">=</span> <span class="n">pd</span><span class="o">.</span><span class="n">DataFrame</span><span class="p">({</span><span class="s2">"y"</span><span class="p">:</span> <span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">"x"</span><span class="p">:</span> <span class="p">[</span><span class="mi">2</span><span class="p">]})</span>
<span class="gp">>>> </span><span class="n">conv</span> <span class="o">=</span> <span class="n">DFtoVW</span><span class="o">.</span><span class="n">from_colnames</span><span class="p">(</span><span class="n">y</span><span class="o">=</span><span class="s2">"y"</span><span class="p">,</span> <span class="n">x</span><span class="o">=</span><span class="s2">"x"</span><span class="p">,</span> <span class="n">df</span><span class="o">=</span><span class="n">df</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">conv</span><span class="o">.</span><span class="n">convert_df</span><span class="p">()</span>
<span class="go">['1 | x:2']</span>
</pre></div>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">df2</span> <span class="o">=</span> <span class="n">pd</span><span class="o">.</span><span class="n">DataFrame</span><span class="p">({</span><span class="s2">"y"</span><span class="p">:</span> <span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">"x1"</span><span class="p">:</span> <span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="s2">"x2"</span><span class="p">:</span> <span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="s2">"x3"</span><span class="p">:</span> <span class="p">[</span><span class="mi">4</span><span class="p">]})</span>
<span class="gp">>>> </span><span class="n">conv2</span> <span class="o">=</span> <span class="n">DFtoVW</span><span class="o">.</span><span class="n">from_colnames</span><span class="p">(</span><span class="n">y</span><span class="o">=</span><span class="s2">"y"</span><span class="p">,</span> <span class="n">x</span><span class="o">=</span><span class="nb">sorted</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">df2</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">-</span> <span class="nb">set</span><span class="p">(</span><span class="s2">"y"</span><span class="p">))),</span> <span class="n">df</span><span class="o">=</span><span class="n">df2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">conv2</span><span class="o">.</span><span class="n">convert_df</span><span class="p">()</span>
<span class="go">['1 | x1:2 x2:3 x3:4']</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.process_features">
<code class="descname">process_features</code><span class="sig-paren">(</span><em>self</em>, <em>features</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.process_features" title="Permalink to this definition">¶</a></dt>
<dd><p>Process the features (of a namespace) into a unique column.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>features</strong> <span class="classifier-delimiter">:</span> <span class="classifier">list of Feature</span></dt>
<dd><p class="first last">The list of Feature objects.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>out</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.Series</span></dt>
<dd><p class="first last">The column of the processed features.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.process_label_and_tag">
<code class="descname">process_label_and_tag</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.process_label_and_tag" title="Permalink to this definition">¶</a></dt>
<dd><p>Process the label and tag into a unique column.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>out</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.Series</span></dt>
<dd><p class="first last">A column where each row is the processed label and tag.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.raise_missing_col_error">
<code class="descname">raise_missing_col_error</code><span class="sig-paren">(</span><em>self</em>, <em>missing_cols_dict</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.raise_missing_col_error" title="Permalink to this definition">¶</a></dt>
<dd><p>Raises error if some columns are missing.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>ValueError</dt>
<dd><p class="first last">If one or more columns are not in the dataframe.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.DFtoVW.set_namespaces">
<code class="descname">set_namespaces</code><span class="sig-paren">(</span><em>self</em>, <em>namespaces</em>, <em>features</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.DFtoVW.set_namespaces" title="Permalink to this definition">¶</a></dt>
<dd><p>Set namespaces attributes</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>namespaces: Namespace / list of Namespace objects</strong></dt>
<dd><p class="first last">The namespaces argument.</p>
</dd>
<dt><strong>features: Feature / list of Feature objects</strong></dt>
<dd><p class="first last">The features argument.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.Feature">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">Feature</code><span class="sig-paren">(</span><em>value</em>, <em>rename_feature=None</em>, <em>as_type=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Feature" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The feature type for the constructor of DFtoVW</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.Feature.process" title="vowpalwabbit.DFtoVW.Feature.process"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process</span></code></a>(self, df)</td>
<td>Returns the Feature string representation.</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.Feature.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>value</em>, <em>rename_feature=None</em>, <em>as_type=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Feature.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a Feature instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>value</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str</span></dt>
<dd><p class="first last">The column name with the value of the feature.</p>
</dd>
<dt><strong>rename_feature</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str, optional</span></dt>
<dd><p class="first last">The name to use instead of the default (which is the column name defined in the value argument).</p>
</dd>
<dt><strong>as_type: str</strong></dt>
<dd><p class="first last">Enforce a specific type (‘numerical’ or ‘categorical’)</p>
</dd>
<dt><strong>Returns</strong></dt>
<dd></dd>
<dt><strong>——-</strong></dt>
<dd></dd>
<dt><strong>self</strong> <span class="classifier-delimiter">:</span> <span class="classifier">Feature</span></dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.Feature.process">
<code class="descname">process</code><span class="sig-paren">(</span><em>self</em>, <em>df</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Feature.process" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the Feature string representation.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>df</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.DataFrame</span></dt>
<dd><p class="first last">The dataframe from which to select the column(s).</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>pandas.Series</dt>
<dd><p class="first last">The Feature string representation.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.Feature.value">
<code class="descname">value</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.Feature.value" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.MultiLabel">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">MultiLabel</code><span class="sig-paren">(</span><em>label</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.MultiLabel" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The multi labels type for the constructor of DFtoVW.</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.MultiLabel.process" title="vowpalwabbit.DFtoVW.MultiLabel.process"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process</span></code></a>(self, df)</td>
<td>Returns the MultiLabel string representation.</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.MultiLabel.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>label</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.MultiLabel.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a MultiLabel instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>label</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str or list of str</span></dt>
<dd><p class="first last">The (list of) column name(s) of the multi label(s).</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>self</strong> <span class="classifier-delimiter">:</span> <span class="classifier">MulticlassLabel</span></dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.MultiLabel.label">
<code class="descname">label</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.MultiLabel.label" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.MultiLabel.process">
<code class="descname">process</code><span class="sig-paren">(</span><em>self</em>, <em>df</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.MultiLabel.process" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the MultiLabel string representation.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>df</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.DataFrame</span></dt>
<dd><p class="first last">The dataframe from which to select the column(s).</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>pandas.Series</dt>
<dd><p class="first last">The MultiLabel string representation.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.MulticlassLabel">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">MulticlassLabel</code><span class="sig-paren">(</span><em>label</em>, <em>weight=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.MulticlassLabel" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The multiclass label type for the constructor of DFtoVW.</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.MulticlassLabel.process" title="vowpalwabbit.DFtoVW.MulticlassLabel.process"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process</span></code></a>(self, df)</td>
<td>Returns the MulticlassLabel string representation.</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.MulticlassLabel.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>label</em>, <em>weight=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.MulticlassLabel.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a MulticlassLabel instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>label</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str</span></dt>
<dd><p class="first last">The column name with the multi class label.</p>
</dd>
<dt><strong>weight: str, optional</strong></dt>
<dd><p class="first last">The column name with the (importance) weight of the multi class label.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>self</strong> <span class="classifier-delimiter">:</span> <span class="classifier">MulticlassLabel</span></dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.MulticlassLabel.label">
<code class="descname">label</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.MulticlassLabel.label" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.MulticlassLabel.process">
<code class="descname">process</code><span class="sig-paren">(</span><em>self</em>, <em>df</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.MulticlassLabel.process" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the MulticlassLabel string representation.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>df</strong> <span class="classifier-delimiter">:</span> <span class="classifier">pandas.DataFrame</span></dt>
<dd><p class="first last">The dataframe from which to select the column(s).</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>pandas.Series</dt>
<dd><p class="first last">The MulticlassLabel string representation.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.MulticlassLabel.weight">
<code class="descname">weight</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.MulticlassLabel.weight" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.Namespace">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">Namespace</code><span class="sig-paren">(</span><em>features</em>, <em>name=None</em>, <em>value=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Namespace" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The namespace type for the constructor of DFtoVW.
The Namespace is a container for Feature object(s), and thus must
be composed of a Feature object or a list of Feature objects.</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.Namespace.check_attributes_type" title="vowpalwabbit.DFtoVW.Namespace.check_attributes_type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">check_attributes_type</span></code></a>(self)</td>
<td>Check if attributes are of valid type.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.Namespace.process" title="vowpalwabbit.DFtoVW.Namespace.process"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process</span></code></a>(self)</td>
<td>Returns the Namespace string representation</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.Namespace.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>features</em>, <em>name=None</em>, <em>value=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Namespace.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a Namespace instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>features</strong> <span class="classifier-delimiter">:</span> <span class="classifier">Feature or list of Feature</span></dt>
<dd><p class="first last">A (list of) Feature object(s) that form the namespace.</p>
</dd>
<dt><strong>name</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str/int/float, optional</span></dt>
<dd><p class="first last">The name of the namespace.</p>
</dd>
<dt><strong>value</strong> <span class="classifier-delimiter">:</span> <span class="classifier">int/float, optional</span></dt>
<dd><p class="first last">A constant that specify the scaling factor for the features of this
namespace.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>self</strong> <span class="classifier-delimiter">:</span> <span class="classifier">Namespace</span></dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">vowpalwabbit.DFtoVW</span> <span class="kn">import</span> <span class="n">Namespace</span><span class="p">,</span> <span class="n">Feature</span>
<span class="gp">>>> </span><span class="n">ns_one_feature</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="n">Feature</span><span class="p">(</span><span class="s2">"a"</span><span class="p">))</span>
<span class="gp">>>> </span><span class="n">ns_multi_features</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">([</span><span class="n">Feature</span><span class="p">(</span><span class="s2">"a"</span><span class="p">),</span> <span class="n">Feature</span><span class="p">(</span><span class="s2">"b"</span><span class="p">)])</span>
<span class="gp">>>> </span><span class="n">ns_one_feature_with_name</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="n">Feature</span><span class="p">(</span><span class="s2">"a"</span><span class="p">),</span> <span class="n">name</span><span class="o">=</span><span class="s2">"FirstNamespace"</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">ns_one_feature_with_name_and_value</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="n">Feature</span><span class="p">(</span><span class="s2">"a"</span><span class="p">),</span> <span class="n">name</span><span class="o">=</span><span class="s2">"FirstNamespace"</span><span class="p">,</span> <span class="n">value</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.Namespace.check_attributes_type">
<code class="descname">check_attributes_type</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Namespace.check_attributes_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if attributes are of valid type.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><dl class="first last docutils">
<dt>TypeError</dt>
<dd><p class="first last">If one of the attribute is not valid.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.Namespace.expected_type">
<code class="descname">expected_type</code><em class="property"> = {'features': (<class 'vowpalwabbit.DFtoVW.Feature'>,), 'name': (<type 'str'>, <type 'int'>, <type 'float'>), 'value': (<type 'int'>, <type 'float'>)}</em><a class="headerlink" href="#vowpalwabbit.DFtoVW.Namespace.expected_type" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.Namespace.process">
<code class="descname">process</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.Namespace.process" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the Namespace string representation</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>str</dt>
<dd><p class="first last">The Namespace string representation.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="vowpalwabbit.DFtoVW.SimpleLabel">
<em class="property">class </em><code class="descclassname">vowpalwabbit.DFtoVW.</code><code class="descname">SimpleLabel</code><span class="sig-paren">(</span><em>label</em>, <em>weight=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.SimpleLabel" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The simple label type for the constructor of DFtoVW.</p>
<p class="rubric">Methods</p>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="#vowpalwabbit.DFtoVW.SimpleLabel.process" title="vowpalwabbit.DFtoVW.SimpleLabel.process"><code class="xref py py-obj docutils literal notranslate"><span class="pre">process</span></code></a>(self, df)</td>
<td>Returns the SimpleLabel string representation.</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="vowpalwabbit.DFtoVW.SimpleLabel.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>self</em>, <em>label</em>, <em>weight=None</em><span class="sig-paren">)</span><a class="headerlink" href="#vowpalwabbit.DFtoVW.SimpleLabel.__init__" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize a SimpleLabel instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>label</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str</span></dt>
<dd><p class="first last">The column name with the label.</p>
</dd>
<dt><strong>weight</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str</span></dt>
<dd><p class="first last">The column name with the weight.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>self</strong> <span class="classifier-delimiter">:</span> <span class="classifier">SimpleLabel</span></dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="vowpalwabbit.DFtoVW.SimpleLabel.label">
<code class="descname">label</code><a class="headerlink" href="#vowpalwabbit.DFtoVW.SimpleLabel.label" title="Permalink to this definition">¶</a></dt>
<dd><p>This descriptor class add type and value checking informations to the _Col
instance for future usage in the DFtoVW class. Indeed, the type and value checking
can only be done once the dataframe is known (i.e in DFtoVW class). This descriptor
class is used in the following managed class: SimpleLabel, MulticlassLabel, Feature, etc.</p>
</dd></dl>