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add lightgbm.booster support #270

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add lightgbm.booster support #270

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d369977
add lightgbm.booster support
qh582 May 29, 2018
cc5b7a4
Merge pull request #1 from qh582/qh582-lightgbm-booster
qh582 May 29, 2018
9c2bb8e
fix bug
qh582 May 29, 2018
9c31a99
bug fix
qh582 May 29, 2018
a042650
fix build for typing
qh582 May 29, 2018
72a50a2
add _check_booster_args test
qh582 May 30, 2018
bb19a4f
add explain_weights test for booster
qh582 May 30, 2018
4bf2f6d
Merge pull request #2 from qh582/qh582-lightgbm-booster
qh582 May 30, 2018
ef991cf
correct is_regression
qh582 May 30, 2018
45379f5
add explain_prediction test for regression booster
qh582 May 30, 2018
a35e5c8
Merge pull request #3 from qh582/qh582-test
qh582 May 30, 2018
0bbf3e2
add booster multiclass test
qh582 May 30, 2018
fa1eccd
fix booster binary case
qh582 May 31, 2018
f053399
add test_explain_prediction_booster_binary
qh582 May 31, 2018
87438d4
remove redundant code
qh582 May 31, 2018
3c213e9
add _lgb_n_targets test
qh582 May 31, 2018
866015a
Merge pull request #4 from qh582/qh582-lightgbm-booster
qh582 May 31, 2018
802e543
Update docs
qh582 May 31, 2018
5155979
update docs
qh582 May 31, 2018
6f1ee40
Merge branch 'master' into qh582-lightgbm-booster
qh582 May 31, 2018
0a488e3
update booster is_regression
qh582 May 31, 2018
19e9bf3
Merge branch 'master' into qh582-lightgbm-booster
qh582 Jun 5, 2018
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add _lgb_n_targets test
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@qh582
qh582 authored May 31, 2018
commit 3c213e93f63a56491ff25a2ac066019196546ef1
18 changes: 17 additions & 1 deletion tests/test_lightgbm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
from lightgbm import LGBMClassifier, LGBMRegressor

from eli5 import explain_weights, explain_prediction
from eli5.lightgbm import _check_booster_args
from eli5.lightgbm import _check_booster_args, _lgb_n_targets
from .test_sklearn_explain_weights import (
test_explain_tree_classifier as _check_rf_classifier,
test_explain_random_forest_and_tree_feature_filter as _check_rf_feature_filter,
Expand Down Expand Up @@ -258,3 +258,19 @@ def test_explain_prediction_booster_binary(
flt_pos_features = get_all_features(flt_res.targets[0].feature_weights.pos)
assert 'graphics' in flt_pos_features
assert 'computer' not in flt_pos_features

def test_lgb_n_targets():
clf = LGBMClassifier(min_data=1)
clf.fit(np.array([[0], [1]]), np.array([0, 1]))
assert _lgb_n_targets(clf) == 1

clf = LGBMClassifier(min_data=1)
clf.fit(np.array([[0], [1], [2]]), np.array([0, 1, 2]))
assert _lgb_n_targets(clf) == 3

reg = LGBMRegressor(min_data=1)
reg.fit(np.array([[0], [1], [2]]), np.array([0, 1, 2]))
assert _lgb_n_targets(reg) == 1

with pytest.raises(TypeError):
_lgb_n_targets(object())