fix: map labels to {0, 1}
fix: deviance computation in BinomialDeviance was wrong (ignored cases where y == 0) - thanks to ChrisBeaumont for reporting this issue
raise ValueError if division through zero in LogOddsEstimator
add loss function for gradient boosting binomial deviance
pep8 and assert_equal instead of assert
correct docstring
Merge branch 'master' into gbrt-deviance-fix
use unique from sklearn backports (return_inverse)
ENH break ties in OvO using scores
TST test for breaking OVO ties
COSMIT pep8
FIX: variable naming inconsistency in NMF
ENH: precompute X_argsorted when possible
DOC: X_argsorted
Flake8
P3K use six to have a python 2 & 3 compatible code base
P3K StringIO vs BytesIO
DOC fix failing doctest due to unicode_literals
Cosmit: more explicit xlabel.
Cosmit: more explicit label.