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plot_work.py
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plot_work.py
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"""
Idea:
implement magic that takes the path to the experiment configuration
plotting function:
- iteration plots
* learner, config, repetition, iteration
- results plots
* config, results
"""
import os
import warnings
from collections import namedtuple, OrderedDict
from functools import reduce
from itertools import cycle
from typing import Callable, List, Union
import matplotlib.pyplot as plt
from IPython.core.getipython import get_ipython
from IPython.core.magic import register_line_magic
from IPython.core.magic_arguments import argument, magic_arguments, parse_argstring
from IPython.display import display, FileLink
from ipywidgets import Box, FloatProgress, HBox, Label, Layout, Output, Tab, VBox
from matplotlib.axes import Axes
from matplotlib.figure import Figure
from pandas import DataFrame, Series
import numpy as np
from cluster_work import ClusterWork
__iteration_plot_functions = {}
__results_plot_functions = {}
__file_provider_functions = {}
__experiment_class: ClusterWork = None
__experiment_config = None
__experiment_selectors = None
__instances = []
__instantiated_experiments = []
def register_iteration_plot_function(name: str):
def register_iteration_plot_function_decorator(plot_function: Callable[[ClusterWork, int, int, List], Figure]):
global __iteration_plot_functions
__iteration_plot_functions[name] = plot_function
return plot_function
return register_iteration_plot_function_decorator
def register_results_plot_function(name: str):
def register_results_plot_function_decorator(plot_function: Callable[[str, DataFrame, plt.Axes], None]):
global __results_plot_functions
__results_plot_functions[name] = plot_function
return plot_function
return register_results_plot_function_decorator
DownloadFile = namedtuple('DownloadFile', ['path', 'file_name', 'link_text'])
def register_file_provider(name: str):
def register_file_provider_decorator(file_provider_function: Callable[[ClusterWork, dict, list],
Union[DownloadFile, List[DownloadFile]]]):
global __file_provider_functions
__file_provider_functions[name] = file_provider_function
return file_provider_function
return register_file_provider_decorator
@register_line_magic
def set_experiment_class(line: str):
global __experiment_class
__experiment_class = get_ipython().ev(line)
@register_line_magic
@magic_arguments()
@argument('config', type=str)
@argument('-e', '--experiments', nargs='*')
@argument('-f', '--filter', nargs='*', help='filter strings that are applied on the experiment names')
def load_experiment(line: str):
# TODO add tab completion for file
# read line, split at white spaces load experiments with selectors
args = parse_argstring(load_experiment, line)
# experiment_config = splits.pop(0)
# experiment_selectors = splits
# check if experiment config exists and load experiments
if not os.path.exists(args.config):
raise Warning('path does not exist: {}'.format(args.config))
else:
global __experiments, __experiment_config, __experiment_selectors
__experiment_config = args.config
__experiment_selectors = args.experiments
with open(__experiment_config, 'r') as f:
__experiments = __experiment_class.load_experiments(f, __experiment_selectors)
if args.filter is not None:
__experiments = list(filter(lambda c: all([_f in c['name'] for _f in args.filter]), __experiments))
else:
__experiments = __experiments
get_ipython().user_ns['experiments'] = __experiments
@register_line_magic
@magic_arguments()
@argument('-r', '--repetition', type=int, help='the repetition', default=0)
@argument('-i', '--iteration', type=int, help='the iteration to plot', default=0)
def restore_experiment_state(line: str):
args = parse_argstring(restore_experiment_state, line)
global __instances, __instantiated_experiments
__instances.clear()
__instantiated_experiments.clear()
with Output():
for exp in get_ipython().user_ns['experiments']:
exp_instance = __experiment_class.init_from_config(exp, args.repetition, args.iteration)
if exp_instance:
__instances.append(exp_instance)
__instantiated_experiments.append(exp)
get_ipython().user_ns['experiment_instances'] = __instances
@register_line_magic
@magic_arguments()
@argument('column')
def restore_best_experiment_state(line: str):
args = parse_argstring(restore_best_experiment_state, line)
global __instances, __instantiated_experiments, __experiments
__instances.clear()
__instantiated_experiments.clear()
experiment_results = [ClusterWork.load_experiment_results(exp) for exp in __experiments]
best_results_idx = []
# with Output():
for exp, result in zip(__experiments, experiment_results):
if result is not None:
result_column = result[args.column]
r, i = result_column.idxmax()
best_results_idx.append((r, i))
exp_instance = __experiment_class.init_from_config(exp, r, i)
if exp_instance:
__instances.append(exp_instance)
__instantiated_experiments.append(exp)
get_ipython().user_ns['best_results_idx'] = best_results_idx
get_ipython().user_ns['experiment_instances'] = __instances
@register_line_magic
@magic_arguments()
@argument('column')
def print_best_iterations(line: str):
args = parse_argstring(restore_best_experiment_state, line)
experiment_results = [ClusterWork.load_experiment_results(exp) for exp in __experiments]
best_results_idx = {}
for exp, result in zip(__experiments, experiment_results):
if result is not None:
result_column = result[args.column]
r, i = result_column.idxmax()
val = result_column.loc[(r, i)]
best_results_idx[exp['name']] = (r, i, val)
get_ipython().user_ns['best_results_idx'] = best_results_idx
for k, (r, i, val) in best_results_idx.items():
print('- {}: Rep {} It {} --> {}'.format(k, r, i, val))
@register_line_magic
@magic_arguments()
@argument('plotter_name', type=str, help='the name of the plotter function')
@argument('--save_figures', action='store_true', help='store the figures to files')
@argument('--prefix', type=str, help='add a prefix to the filename', default='')
@argument('--format', type=str, help='format to store the figure in', default=None)
@argument('--tab_title', type=str, help="Choose columns from config for tab titles", default=None)
@argument('args', nargs='*', help='extra arguments passed to the filter function')
def plot_iteration(line: str):
"""call a registered plotter function for the given repetition and iteration"""
args = parse_argstring(plot_iteration, line)
items = []
from ipywidgets.widgets.interaction import show_inline_matplotlib_plots
global __instances, __instantiated_experiments
for exp_instance, exp_config in zip(__instances, __instantiated_experiments):
out = Output()
items.append(out)
with out:
# clear_output(wait=True)
figures = __iteration_plot_functions[args.plotter_name](exp_instance, args.args)
show_inline_matplotlib_plots()
if args.save_figures:
if args.format is None:
args.format = plt.rcParams['savefig.format']
os.makedirs('plots/{}'.format(exp_config['name']), exist_ok=True)
for i, f in enumerate(figures):
filename = 'plots/{}/{}figure_{}.{}'.format(exp_config['name'], args.prefix, i, args.format)
if args.format == 'tikz':
try:
from matplotlib2tikz import save as tikz_save
with Output():
tikz_save(filename, figureheight='\\figureheight', figurewidth='\\figurewidth')
except ModuleNotFoundError:
warnings.warn('Saving figure as tikz requires the module matplotlib2tikz.')
else:
f.savefig(filename, format=args.format)
if len(items) > 1:
tabs = Tab(children=items)
for i, exp in enumerate(__instantiated_experiments):
if args.tab_title:
if (args.tab_title[0] == args.tab_title[-1]) and args.tab_title.startswith(("'", '"')):
selectors = args.tab_title[1:-1]
else:
selectors = args.tab_title
selectors = selectors.split(' ')
values = [reduce(lambda a, b: a[b], [exp['params'], *selector.split('.')]) for selector in
selectors]
tabs.set_title(i, ' '.join(map(str, values)))
else:
tabs.set_title(i, '...' + exp['name'][-15:])
display(tabs)
elif len(items) == 1:
return items[0]
else:
warnings.warn('No plots available for {} with args {}'.format(args.plotter_name, args.args))
def __plot_iteration_completer(_ipython, _event):
return __iteration_plot_functions.keys()
@register_line_magic
@magic_arguments()
@argument('plotter_name', type=str, help='the name of the plotter function')
@argument('column', type=str, nargs='*', help='column of the results DataFrame to plot')
@argument('--save_figures', action='store_true', help='store the figures to files')
@argument('--prefix', type=str, help='add a prefix to the filename', default='')
@argument('--format', type=str, help='format to store the figure in', default=None)
@argument('-i', '--individual', action='store_true', help='plot each experiment in a single axes object')
def plot_results(line: str):
args = parse_argstring(plot_results, line)
# global __experiments, __results_plot_functions
config_results = [(config, ClusterWork.load_experiment_results(config)) for config in __experiments]
config_results = list(map(lambda t: (t[0], t[1][args.column]), filter(lambda t: t[1] is not None, config_results)))
global __experiment_selectors
for selector in __experiment_selectors:
selected_config_results = list(filter(lambda t: t[0]['name'].startswith(selector), config_results))
f = plt.figure()
if args.individual:
axes = f.subplots(len(selected_config_results), 1)
else:
axes = [f.subplots(1, 1)] * len(selected_config_results)
for config_result, ax in zip(selected_config_results, axes):
config, result = config_result
# ax.set_xlim(0, config['iterations'])
ax.set_title('Results')
ax.set_xlabel('iterations')
ax.set_ylabel(args.column)
__results_plot_functions[args.plotter_name](config['name'], result, ax)
if args.save_figures:
if args.format is None:
args.format = plt.rcParams['savefig.format']
filename = 'plots/{}{}_figure.{}'.format(args.prefix, selector, args.format)
if args.format == 'tikz':
try:
from matplotlib2tikz import save as tikz_save
with Output():
tikz_save(filename, figureheight='\\figureheight', figurewidth='\\figurewidth')
except ModuleNotFoundError:
warnings.warn('Saving figure as tikz requires the module matplotlib2tikz.')
else:
f.savefig(filename, format=args.format)
@register_line_magic
@magic_arguments()
@argument('column', type=str, nargs='*', help='column of the results DataFrame to plot')
def print_results(line: str):
args = parse_argstring(print_results, line)
# global __experiments, __results_plot_functions
config_results = [(config, ClusterWork.load_experiment_results(config)) for config in __experiments]
config_results = list(map(lambda t: (t[0], t[1][args.column]), filter(lambda t: t[1] is not None, config_results)))
ret = []
global __experiment_selectors
for selector in __experiment_selectors:
selected_config_results = list(filter(lambda t: t[0]['name'].startswith(selector), config_results))
df = DataFrame(columns=['m', 's'])
for config_result in selected_config_results:
config, result = config_result
df.loc[config['name']] = result.mean()[0], result.std()[0]
ret.append(df)
return tuple(ret)
def __create_exp_progress_box(name, exp_progress, rep_progress, show_full_progress=False):
exp_progress_layout = Layout(display='flex', flex_flow='column', align_items='stretch', width='100%')
exp_progress_bar = HBox([FloatProgress(value=exp_progress, min=.0, max=1., bar_style='info'), Label(name)])
if show_full_progress:
rep_progress_layout = Layout(display='flex', flex_flow='column', align_items='stretch',
align_self='flex-end', width='80%')
items = [FloatProgress(value=p, min=.0, max=1., description=str(i)) for i, p in enumerate(rep_progress)]
rep_progress_box = Box(children=items, layout=rep_progress_layout)
return Box(children=[exp_progress_bar, rep_progress_box], layout=exp_progress_layout)
else:
return exp_progress_bar
class DownloadFileLink(FileLink):
html_link_str = "<a href='{link}' download={file_name}>{link_text}</a>"
def __init__(self, path, file_name=None, link_text=None, *args, **kwargs):
super(DownloadFileLink, self).__init__(path, *args, **kwargs)
self.file_name = file_name or os.path.split(path)[1]
self.link_text = link_text or self.file_name
def _format_path(self):
from html import escape
fp = ''.join([self.url_prefix, escape(self.path)])
return ''.join([self.result_html_prefix,
self.html_link_str.format(link=fp, file_name=self.file_name, link_text=self.link_text),
self.result_html_suffix])
@register_line_magic
@magic_arguments()
@argument('file_provider', type=str, help='name of the file provider function')
@argument('--tab_title', type=str, help="Choose columns from config for tab titles", default=None)
@argument('args', nargs='*', help='extra arguments passed to the filter function')
def provide_files(line: str):
args = parse_argstring(provide_files, line)
items = []
ipy = get_ipython()
url_prefix = os.path.relpath(os.getcwd(), ipy.starting_dir) + os.path.sep
print(url_prefix)
global __file_provider_functions
global __instances, __instantiated_experiments
for exp_instance, exp_config in zip(__instances, __instantiated_experiments):
dfs = __file_provider_functions[args.file_provider](exp_instance, exp_config, args.args)
if isinstance(dfs, DownloadFile):
items.append(Output())
with items[-1]:
display(DownloadFileLink(dfs.path, file_name=dfs.file_name, link_text=dfs.link_text,
url_prefix=url_prefix))
else:
items.append(VBox([DownloadFileLink(df.path, file_name=df.file_name, link_text=df.link_text,
url_prefix=url_prefix) for df in dfs]))
if len(items) > 1:
tabs = Tab(children=items)
for i, exp in enumerate(__instantiated_experiments):
if args.tab_title:
if (args.tab_title[0] == args.tab_title[-1]) and args.tab_title.startswith(("'", '"')):
selectors = args.tab_title[1:-1]
else:
selectors = args.tab_title
selectors = selectors.split(' ')
values = [reduce(lambda a, b: a[b], [exp['params'], *selector.split('.')]) for selector in selectors]
tabs.set_title(i, ' '.join(map(str, values)))
else:
tabs.set_title(i, '...' + exp['name'][-15:])
display(tabs)
elif len(items) == 1:
return items[0]
else:
warnings.warn('No files loaded')
@register_line_magic
def show_progress(line: str):
show_full_progress = line == 'full'
global __experiment_config, __experiment_selectors
with open(__experiment_config, 'r') as f:
total_progress, experiments_progress = ClusterWork.get_progress(f, __experiment_selectors)
box_layout = Layout(display='flex', flex_flow='column', align_items='stretch', widht='100%')
items = [__create_exp_progress_box(*progress, show_full_progress) for progress in experiments_progress]
total_progress_bar = FloatProgress(value=total_progress, min=.0, max=1., description='Total', bar_style='success')
return Box(children=items + [total_progress_bar], layout=box_layout)
def load_ipython_extension(ipython):
global __iteration_plot_functions, __results_plot_functions
# ipython.push(['__experiment_config', '__experiment_selectors'])
ipython.set_hook('complete_command', __plot_iteration_completer, re_key='%plot_iteration')
# ipython.set_hook('complete_command', lambda e: __results_plot_functions.keys(), re_key='%plot_results')
_line_styles = OrderedDict(
[('solid', (0, ())),
('densely dotted', (0, (1, 1))),
('densely dashed', (0, (5, 1))),
('densely dashdotted', (0, (3, 1, 1, 1))),
('densely dashdotdotted', (0, (3, 1, 1, 1, 1, 1))),
('dashed', (0, (5, 5))),
('dotted', (0, (1, 5))),
('dashdotted', (0, (3, 5, 1, 5))),
('dashdotdotted', (0, (3, 5, 1, 5, 1, 5))),
('loosely dotted', (0, (1, 10))),
('loosely dashed', (0, (5, 10))),
('loosely dashdotted', (0, (3, 10, 1, 10))),
('loosely dashdotdotted', (0, (3, 10, 1, 10, 1, 10))),
])
_line_style_cycles = dict()
def line_style_cycle(axes: Axes):
if axes in _line_style_cycles:
return _line_style_cycles[axes]
else:
_line_style_cycles[axes] = cycle(_line_styles)
return _line_style_cycles[axes]
def _plot_one_column(axes, column, name, plot_each_rep=False, ls_def=None):
mean = column.groupby(level=1).mean()
std = column.groupby(level=1).std()
if ls_def is None:
ls_name = next(line_style_cycle(axes))
ls_def = _line_styles[ls_name]
if plot_each_rep:
axes.plot(mean.index, column.unstack(level=0), c='grey', ls=ls_def, alpha=.5)
axes.fill_between(mean.index, mean - 2 * std, mean + 2 * std, alpha=.35)
axes.plot(mean.index, mean, label=name, ls=ls_def)
axes.legend()
@register_results_plot_function('mean_2std')
def plot_mean_2std(name: str, results_df: Union[Series, DataFrame], axes: Axes, plot_each_rep=False):
if isinstance(results_df, DataFrame):
for col in results_df:
_plot_one_column(axes, results_df[col], name + ', ' + col, plot_each_rep)
else:
_plot_one_column(axes, results_df, name, plot_each_rep)
register_results_plot_function('mean_2std_reps')(lambda n, df, a: plot_mean_2std(n, df, a, True))
@register_results_plot_function('mean_2std_best')
def plot_mean_2std_best(name: str, results_df: Union[Series, DataFrame], axes: Axes, plot_outliers=False):
n_best = 7
if isinstance(results_df, DataFrame):
for col in results_df:
# search maximum values in each repetition
max_val = results_df[col].groupby(level=0).max()
# sort maximum values in descending order
sorted_val = max_val.sort_values(ascending=False)
# take the first n_best maximum values
best_val = sorted_val.head(n_best)
worst_val = sorted_val.tail(len(sorted_val) - n_best)
# select repetitions based on index in best_val
selected_repetitions = results_df[col].loc[best_val.index.tolist()]
outlier_repetitions = results_df[col].loc[worst_val.index.tolist()]
ls_name = next(line_style_cycle(axes))
ls_def = _line_styles[ls_name]
if plot_outliers:
unstacked_outliers = outlier_repetitions.unstack(level=0)
axes.plot(unstacked_outliers.index, unstacked_outliers, c='grey', ls=ls_def, alpha=.5)
_plot_one_column(axes, selected_repetitions, name + ', ' + col, ls_def=ls_def)
else:
# search maximum values in each repetition
max_val = results_df.groupby(level=0).max()
# sort maximum values in descending order
sorted_val = max_val.sort_values(ascending=False)
# take the first n_best maximum values
best_val = sorted_val.head(n_best)
worst_val = sorted_val.tail(len(sorted_val) - n_best)
# select repetitions based on index in best_val
selected_repetitions = results_df.loc[best_val.index.tolist()]
outlier_repetitions = results_df.loc[worst_val.index.tolist()]
ls_name = next(line_style_cycle(axes))
ls_def = _line_styles[ls_name]
if plot_outliers:
unstacked_outliers = outlier_repetitions.unstack(level=0)
axes.plot(unstacked_outliers.index, unstacked_outliers, c='grey', ls=ls_def)
_plot_one_column(axes, selected_repetitions, name, ls_def=ls_def)
register_results_plot_function('mean_2std_best_out')(lambda n, df, a: plot_mean_2std_best(n, df, a, True))
@register_results_plot_function('mean_grid_results')
def plot_mean_grid_results(name: str, results_df: Union[Series, DataFrame], axes: Axes, plot_outliers=False):
pass
del register_line_magic