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Merge branch 'master' into n_estimator_should_be_100
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‎.gitignore‎

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@@ -54,6 +54,7 @@ benchmarks/bench_covertype_data/
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*.prefs
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.pydevproject
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.idea
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.vscode
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*.c
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*.cpp

‎.travis.yml‎

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language: python
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cache:
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apt: true
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directories:
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- $HOME/.cache/pip
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- $HOME/.ccache
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# cache:
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# apt: true
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# directories:
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# - $HOME/.cache/pip
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# - $HOME/.ccache
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dist: trusty
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‎README.rst‎

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@@ -78,6 +78,12 @@ or ``conda``::
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The documentation includes more detailed `installation instructions <http://scikit-learn.org/stable/install.html>`_.
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Changelog
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---------
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See the `changelog <http://scikit-learn.org/dev/whats_new.html>`__
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for a history of notable changes to scikit-learn.
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Development
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-----------
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‎benchmarks/bench_plot_incremental_pca.py‎

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@@ -13,7 +13,7 @@
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from collections import defaultdict
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import matplotlib.pyplot as plt
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from sklearn.datasets import fetch_lfw_people
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from sklearn.decomposition import IncrementalPCA, RandomizedPCA, PCA
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from sklearn.decomposition import IncrementalPCA, PCA
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def plot_results(X, y, label):
@@ -37,7 +37,6 @@ def plot_feature_times(all_times, batch_size, all_components, data):
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plot_results(all_components, all_times['pca'], label="PCA")
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plot_results(all_components, all_times['ipca'],
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label="IncrementalPCA, bsize=%i" % batch_size)
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plot_results(all_components, all_times['rpca'], label="RandomizedPCA")
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plt.legend(loc="upper left")
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plt.suptitle("Algorithm runtime vs. n_components\n \
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LFW, size %i x %i" % data.shape)
@@ -50,7 +49,6 @@ def plot_feature_errors(all_errors, batch_size, all_components, data):
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plot_results(all_components, all_errors['pca'], label="PCA")
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plot_results(all_components, all_errors['ipca'],
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label="IncrementalPCA, bsize=%i" % batch_size)
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plot_results(all_components, all_errors['rpca'], label="RandomizedPCA")
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plt.legend(loc="lower left")
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plt.suptitle("Algorithm error vs. n_components\n"
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"LFW, size %i x %i" % data.shape)
@@ -61,7 +59,6 @@ def plot_feature_errors(all_errors, batch_size, all_components, data):
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def plot_batch_times(all_times, n_features, all_batch_sizes, data):
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plt.figure()
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plot_results(all_batch_sizes, all_times['pca'], label="PCA")
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plot_results(all_batch_sizes, all_times['rpca'], label="RandomizedPCA")
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plot_results(all_batch_sizes, all_times['ipca'], label="IncrementalPCA")
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plt.legend(loc="lower left")
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plt.suptitle("Algorithm runtime vs. batch_size for n_components %i\n \
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all_errors = defaultdict(list)
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for n_components in all_features:
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pca = PCA(n_components=n_components)
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rpca = RandomizedPCA(n_components=n_components, random_state=1999)
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ipca = IncrementalPCA(n_components=n_components, batch_size=batch_size)
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results_dict = {k: benchmark(est, data) for k, est in [('pca', pca),
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('ipca', ipca),
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('rpca', rpca)]}
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('ipca', ipca)]}
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for k in sorted(results_dict.keys()):
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all_times[k].append(results_dict[k]['time'])
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all_times = defaultdict(list)
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all_errors = defaultdict(list)
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pca = PCA(n_components=n_components)
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rpca = RandomizedPCA(n_components=n_components, random_state=1999)
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rpca = PCA(n_components=n_components, svd_solver='randomized',
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random_state=1999)
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results_dict = {k: benchmark(est, data) for k, est in [('pca', pca),
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('rpca', rpca)]}
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all_errors['ipca'].append(results_dict['ipca']['error'])
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plot_batch_times(all_times, n_components, batch_sizes, data)
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# RandomizedPCA error is always worse (approx 100x) than other PCA
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# tests
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plot_batch_errors(all_errors, n_components, batch_sizes, data)
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faces = fetch_lfw_people(resize=.2, min_faces_per_person=5)

‎build_tools/circle/list_versions.py‎

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return human_readable_data_quantity(path_details['size'], 1000)
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print(':orphan:')
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print()
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heading = 'Available documentation for Scikit-learn'
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print(heading)
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print('=' * len(heading))

‎doc/conf.py‎

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# The encoding of source files.
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#source_encoding = 'utf-8'
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# Generate the plots for the gallery
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plot_gallery = True
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# The master toctree document.
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master_doc = 'index'
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# List of patterns, relative to source directory, that match files and
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# directories to ignore when looking for source files.
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exclude_patterns = ['_build', 'templates', 'includes']
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exclude_patterns = ['_build', 'templates', 'includes', 'themes']
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# The reST default role (used for this markup: `text`) to use for all
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# documents.

‎doc/conftest.py‎

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from sklearn.utils.testing import SkipTest
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from sklearn.utils.testing import check_skip_network
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from sklearn.datasets import get_data_home
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from sklearn.datasets.base import _pkl_filepath
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from sklearn.datasets.twenty_newsgroups import CACHE_NAME
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from sklearn.utils.testing import install_mldata_mock
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from sklearn.utils.testing import uninstall_mldata_mock
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def setup_twenty_newsgroups():
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data_home = get_data_home()
50-
if not exists(join(data_home, '20news_home')):
52+
cache_path = _pkl_filepath(get_data_home(), CACHE_NAME)
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if not exists(cache_path):
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raise SkipTest("Skipping dataset loading doctests")
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def setup_working_with_text_data():
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check_skip_network()
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cache_path = _pkl_filepath(get_data_home(), CACHE_NAME)
60+
if not exists(cache_path):
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raise SkipTest("Skipping dataset loading doctests")
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63+
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def setup_compose():
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try:
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import pandas # noqa
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except ImportError:
68+
raise SkipTest("Skipping compose.rst, pandas not installed")
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70+
71+
def setup_impute():
72+
try:
73+
import pandas # noqa
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except ImportError:
75+
raise SkipTest("Skipping impute.rst, pandas not installed")
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def pytest_runtest_setup(item):
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fname = item.fspath.strpath
60-
if fname.endswith('datasets/labeled_faces.rst'):
80+
is_index = fname.endswith('datasets/index.rst')
81+
if fname.endswith('datasets/labeled_faces.rst') or is_index:
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setup_labeled_faces()
62-
elif fname.endswith('datasets/mldata.rst'):
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elif fname.endswith('datasets/mldata.rst') or is_index:
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setup_mldata()
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elif fname.endswith('datasets/rcv1.rst'):
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elif fname.endswith('datasets/rcv1.rst') or is_index:
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setup_rcv1()
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elif fname.endswith('datasets/twenty_newsgroups.rst'):
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elif fname.endswith('datasets/twenty_newsgroups.rst') or is_index:
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setup_twenty_newsgroups()
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elif fname.endswith('tutorial/text_analytics/working_with_text_data.rst'):
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elif fname.endswith('tutorial/text_analytics/working_with_text_data.rst')\
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or is_index:
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setup_working_with_text_data()
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elif fname.endswith('modules/compose.rst') or is_index:
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setup_compose()
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elif fname.endswith('modules/impute.rst'):
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setup_impute()
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def pytest_runtest_teardown(item):

‎doc/datasets/covtype.rst‎

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.. _covtype:
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Forest covertypes
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=================
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-----------------
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The samples in this dataset correspond to 30×30m patches of forest in the US,
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collected for the task of predicting each patch's cover type,
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i.e. the dominant species of tree.
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There are seven covertypes, making this a multiclass classification problem.
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Each sample has 54 features, described on the
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`dataset's homepage <http://archive.ics.uci.edu/ml/datasets/Covertype>`_.
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`dataset's homepage <http://archive.ics.uci.edu/ml/datasets/Covertype>`__.
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Some of the features are boolean indicators,
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while others are discrete or continuous measurements.
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