574ebfda85
Merge pull request #4436 from ogrisel/rebased-pr-3747
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[MRG+2] FIX make StandardScaler & scale more numerically stable
2015-03-23 11:12:32 -05:00
b596dfcfef
FIX test for older versions of numpy
2015-03-23 16:41:18 +01:00
04078be7da
FIX make StandardScaler & scale more numerically stable
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Detect common numerical stability problems in the standardization
routines and try simple mitigation strategies while alos issuing
a warning.
2015-03-23 14:32:33 +01:00
cd2ee7e454
MAINT docstring --> comments to prevent nose from using doc in verbose mode
2015-03-21 11:16:49 +05:30
6beacc3fb6
remove deprecated stuff from 0.17
2015-03-18 14:49:04 -04:00
ed47b5b744
Directly compute polynomial features.
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Polynomial features are computed by iterating over all combinations
of features. For each combination of features, the product of the
columns indexed by the combination is computed.
The fit method is now a no-op, and the transform method works with any
number of features (regardless of what fit was called with).
2015-03-18 13:07:15 +11:00
48e72b5559
TST Add test to check if ValueError is raised if input contains NaN
2015-01-16 19:13:31 +05:30
731b50bed6
TST Add test to check if warning is raised for integer dtype-ed inputs.
2015-01-16 19:12:13 +05:30
d71c52929a
Handle_unknown option to OneHotEncoder
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OneHotEncoder fails with a error that is not helpful if a missing
categorical feature is present during transformation.
Add handle_unknown with an "error" and an "ignore" option.
2014-10-24 13:23:53 +02:00
cd7b43ccf9
TST make catch_warnings blocks more robust
2014-10-12 18:20:18 +02:00
52adb5cae7
ENH Add 'axis' argument to sparsefuncs.mean_variance_axis
2014-09-03 13:47:48 +02:00
cbcae0459c
FIX Support unseen labels LabelBinarizer and test
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This fix restores the default behavior of 0.14.1 for backward
compat.
2014-07-29 16:21:04 +02:00
9f45e3730f
Modified sparse OvR to handle sparse target data
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Defaulted label binarizer to set sparse_output=True when training ovr
classifiers, edited Label binarizer to allow for sparse binary column output
2014-07-18 12:10:50 +02:00
7768a3059b
ENH: enable y to only implement the array interface
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For instance y could be a pandas' dataframe
2014-07-17 11:44:07 +02:00
9c1217ce5b
TYPO remove mutli (did you mean Muttley?)
2014-07-15 12:09:45 +02:00
b65e4c8d9d
FIX MinMaxScaler behavior on 1D inputs.
2014-07-13 18:35:21 +02:00
5358be563a
TST crank up preprocessing tests to 99% coverage
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Fixes #3347 . (nosetests reports no missing lines, so 99% seems to
be a roundoff error, or a hint that 100% coverage is impossible :p)
2014-07-06 14:43:26 +02:00
2bfca14c49
ENH sparse matrix support in label binarization
2014-06-25 16:15:19 -04:00
60e8aeaf22
TST test interaction features outside doctest
2014-06-07 15:00:41 +02:00
28eb1ebe15
Assert or ignore all sequence of sequences deprecation warnings
2014-06-05 11:20:36 +02:00
9cfa1f38ad
TST stronger test for non-integers in MultiLabelBinarizer
2014-06-05 11:20:36 +02:00
5b4a3c8d41
TST Validate input MultiLabelBinarizer.inverse_transform
2014-06-05 11:20:36 +02:00
4dfde8bd54
FIX No set construction shorthand in Py2.6
2014-06-05 11:20:36 +02:00
bbc3e7e668
COSMIT use mlb for MultiLabelBinarizer instances
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This class had been called LabelSetsBinarizer, for which lsb was appropriate
2014-06-05 11:20:36 +02:00
742505d870
FIX remove duplicates in MultiLabelBinarizer
2014-06-05 11:20:35 +02:00
18c399e20a
MAINT deprecate sequences of sequences support
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* add warnings
* provide alternative binarizer, sklearn.preprocessing.MultiLabelBinarizer
* fix documentation
2014-06-05 11:20:35 +02:00
724b63a16c
Replacing the test .todense() methods with .toarray()
2014-05-20 21:44:34 -04:00
32c843b4b9
COSMIT: pep8, trailing spaces
2014-03-29 17:59:35 +01:00
14b435c136
Merge pull request #2938 from jnothman/clean_impute
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[MRG+1] some clean-up in Imputer, particularly in calculation of sparse median
2014-03-11 19:18:05 -07:00
43da4ad830
ENH/TST remove unnecessary sorts and complete testing for sparse median
2014-03-04 00:16:49 +11:00
276e260486
ENH add sparse parameter to OneHotEncoder
2014-03-01 17:21:24 +01:00
0a488ff642
FIX OneHotEncoder: check value max when n_values is integral
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Fixes #2839 .
2014-02-27 22:10:55 +01:00
dbc26ce996
COSMIT remove unused imports and variables
2014-02-03 19:43:56 +11:00
9e432a88b7
COSMIT: PEP8 in test_imputation
2014-01-16 14:29:48 +01:00
c931854120
FIX: Don't copy X at imputation in the sparse case
2014-01-01 17:52:18 +01:00
08debe2cca
FIX: Ensure expected behaviour when copy=True|False in Imputer
2014-01-01 17:52:05 +01:00
67158600e5
TST: remove stray print statement
2013-11-16 07:28:47 -08:00
f372e126c0
fix ordering & docs of PolynomialFeatures
2013-11-15 08:10:15 -08:00
4c00042f33
reorder polynomial features
2013-11-14 16:59:21 -08:00
2983ab900b
TST: fix doctests & pep8
2013-11-13 04:44:19 -08:00
568c43d6f3
ENH: add PolynomialFeatures preprocessor
2013-11-11 17:18:16 -08:00
067ace1c5d
Using assert_equal routine from nose
2013-11-06 13:37:07 +05:30
6f8186f78a
Adding a test for verifying the shape of imputed matrices
2013-11-06 10:24:29 +05:30
8c987efe0a
FIX issue #1993: passing a multilabel indicator is no more noop
2013-09-16 13:40:26 +02:00
89011e369a
MISC: deprecate balance_weights (it's internal)
2013-07-29 03:06:58 +02:00
e3a764db5e
FIX backward compatibility was broken
2013-07-29 03:06:58 +02:00
8ec572dfa6
COMPAT: median and nans in old numpys
2013-07-27 16:46:44 +02:00
47c9a07548
addressing @ogrisel's comments: catch warnings in test, no unneeded digits
2013-07-27 15:19:32 +02:00
0c82974f7c
FIX/ENH make StandardScaler convert int input to float and warn about it, instead of warning and rounding for dense and crashing for sparse.
2013-07-27 15:19:32 +02:00
43bff76bbe
FIX warning tests in preprocessing
2013-07-27 15:01:51 +02:00
Andreas Mueller