TreeInterpreter
Package for interpreting scikit-learn’s decision tree and random forest predictions. Allows decomposing each prediction into bias and feature contribution components as described in http://blog.datadive.net/interpreting-random-forests/. For a dataset with n features, each prediction on the dataset is decomposed as prediction = bias + feature_1_contribution + ... + feature_n_contribution.
It works on scikit-learn’s
DecisionTreeRegressor
DecisionTreeClassifier
ExtraTreeRegressor
ExtraTreeClassifier
RandomForestRegressor
RandomForestClassifier
ExtraTreesRegressor
ExtraTreesClassifier
Free software: BSD license
Dependencies
scikit-learn 0.17+
Installation
The easiest way to install the package is via pip:
$ pip install treeinterpreter
Usage
from treeinterpreter import treeinterpreter as ti # fit a scikit-learn's regressor model rf = RandomForestRegressor() rf.fit(trainX, trainY) prediction, bias, contributions = ti.predict(rf, testX)
Prediction is the sum of bias and feature contributions:
assert(numpy.allclose(prediction, bias + np.sum(contributions, axis=1))) assert(numpy.allclose(rf.predict(testX), bias + np.sum(contributions, axis=1)))
More usage examples at http://blog.datadive.net/random-forest-interpretation-with-scikit-learn/.
History
0.1.0 (2015-07-22)
First release on PyPI.
1 maintainer
Metadata
1 maintainer
Release files for treeinterpreter 0.2.3
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| File | Size | Uploaded | Provenance | Actions |
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Total release size: 12.2 kB
Release files / treeinterpreter-0.2.3.tar.gz
| Download URL | treeinterpreter-0.2.3.tar.gz |
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Release files / treeinterpreter-0.2.3-py2.py3-none-any.whl
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