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12b8b118dd
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15 Commits

Author SHA1 Message Date
David Monllaó
12b8b118dd Fix division by 0 error during normalization (#83) 
* Fix division by 0 error during normalization

std is 0 when a feature has the same value in samples.

* Expand std normalization test
 2017-04-24 11:47:30 +02:00
Mustafa Karabulut
cf222bcce4 Linear classifiers: Perceptron, Adaline, DecisionStump (#50) 
* Linear classifiers

* Code formatting to PSR-2

* Added basic test cases for linear classifiers
 2017-02-16 23:23:55 +01:00
Arkadiusz Kondas
a4f65bd13f Short syntax for applied operations 2016-12-12 18:34:20 +01:00
Arkadiusz Kondas
9764890ccb Change floatvar to float casting (up to 6 times faster) 2016-12-06 08:52:33 +01:00
Arkadiusz Kondas
cbdc049526 Update php-cs-fixer 2016-11-20 22:53:17 +01:00
Arkadiusz Kondas
4aa9702943 fix errors on hhvm with float casting 2016-07-07 22:47:36 +02:00
Arkadiusz Kondas
601ff884e8 php-cs-fixer 2016-06-17 00:34:15 +02:00
Arkadiusz Kondas
3e9e70810d implement fit on Imputer 2016-06-17 00:16:49 +02:00
Arkadiusz Kondas
557f344018 add fit method for Transformer interface 2016-06-17 00:08:10 +02:00
Arkadiusz Kondas
7f4a0b243f transform samples for prediction in pipeline 2016-06-16 16:10:46 +02:00
Arkadiusz Kondas
d21a401365 implement Tranformer interface on preprocessing classes 2016-06-16 10:03:57 +02:00
Arkadiusz Kondas
fb04b57853 implement data Normalizer with L1 and L2 norm 2016-05-08 20:35:01 +02:00
Arkadiusz Kondas
65cdfe64b2 implement Median and MostFrequent strategy for imputer 2016-05-08 19:33:39 +02:00
Arkadiusz Kondas
ed1e07e803 median function in statistic 2016-05-08 19:12:39 +02:00
Arkadiusz Kondas
b0ab236ab9 create imputer tool for completing missing values 2016-05-08 14:47:17 +02:00