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Implement pct_change() for Series #1071

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merged 6 commits into from
Dec 3, 2019
+84 −1
Merged

Implement pct_change() for Series #1071

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447233e
Implement pct_change() for Series
itholic Nov 24, 2019
153efd1
fix
itholic Nov 26, 2019
9c0ce09
fix
itholic Nov 28, 2019
04e68c6
add test cases
itholic Nov 28, 2019
05cbc92
almost
itholic Dec 3, 2019
3e82a04
fix logic
itholic Dec 3, 2019
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almost
@itholic
itholic committed Dec 3, 2019
commit 05cbc92bbfa06e17acb2a1538a0d461a3f2814c7
32 changes: 16 additions & 16 deletions databricks/koalas/tests/test_series.py
View file
Original file line number Diff line number Diff line change
@@ -914,12 +914,12 @@ def test_pct_change(self):
kser = ks.Series([90, 91, 85], index=[2, 4, 1])
pser = kser.to_pandas()

self.assert_eq(repr(kser.pct_change(periods=-1)),
repr(pser.pct_change(periods=-1)))
self.assert_eq(repr(kser.pct_change(periods=-100000000)),
repr(pser.pct_change(periods=-100000000)))
self.assert_eq(repr(kser.pct_change(periods=100000000)),
repr(pser.pct_change(periods=100000000)))
self.assert_eq(kser.pct_change(periods=-1),
pser.pct_change(periods=-1), almost=True)
self.assert_eq(kser.pct_change(periods=-100000000),
pser.pct_change(periods=-100000000), almost=True)
self.assert_eq(kser.pct_change(periods=100000000),
pser.pct_change(periods=100000000), almost=True)

# for MultiIndex
midx = pd.MultiIndex([['lama', 'cow', 'falcon'],
@@ -929,13 +929,13 @@ def test_pct_change(self):
kser = ks.Series([45, 200, 1.2, 30, 250, 1.5, 320, 1, 0.3], index=midx)
pser = kser.to_pandas()

self.assert_eq(repr(kser.pct_change()),
repr(pser.pct_change()))
self.assert_eq(repr(kser.pct_change(periods=2)),
repr(pser.pct_change(periods=2)))
self.assert_eq(repr(kser.pct_change(periods=-1)),
repr(pser.pct_change(periods=-1)))
self.assert_eq(repr(kser.pct_change(periods=-100000000)),
repr(pser.pct_change(periods=-100000000)))
self.assert_eq(repr(kser.pct_change(periods=100000000)),
repr(pser.pct_change(periods=100000000)))
self.assert_eq(kser.pct_change(),
pser.pct_change(), almost=True)
self.assert_eq(kser.pct_change(periods=2),
pser.pct_change(periods=2), almost=True)
self.assert_eq(kser.pct_change(periods=-1),
pser.pct_change(periods=-1), almost=True)
self.assert_eq(kser.pct_change(periods=-100000000),
pser.pct_change(periods=-100000000), almost=True)
self.assert_eq(kser.pct_change(periods=100000000),
pser.pct_change(periods=100000000), almost=True)