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Reproducible Experiment Platform (REP)

REP is ipython-based environment for conducting data-driven research in a consistent and reproducible way.

Main features:

  • unified python wrapper for different ML libraries (wrappers follow extended scikit-learn interface)
    • Sklearn
    • TMVA
    • XGBoost
    • uBoost
    • Theanets
    • Pybrain
    • Neurolab
  • parallel training of classifiers on cluster
  • classification/regression reports with plots
  • interactive plots supported
  • smart grid-search algorithms with parallelized execution
  • versioning of research using git
  • pluggable quality metrics for classification
  • meta-algorithm design (aka 'rep-lego')

REP is not trying to substitute scikit-learn, but extends it and provides better user experience.

Howto examples

To get started, look at the notebooks in /howto/

Notebooks can be viewed (not executed) online at nbviewer <br />
There are basic introductory notebooks (about python, IPython) and more advanced ones (about the REP itself)

Installation with Docker

We provide the docker image with REP and all it's dependencies

Installation with bare hands

However, if you want to install REP and all of its dependencies on your machine yourself, follow this manual:
installing manually and
running manually.



Apache 2.0, library is open-source.

Minimal examples

REP wrappers are sklearn compatible:

from rep.estimators import XGBoostClassifier, SklearnClassifier, TheanetsClassifier
clf = XGBoostClassifier(n_estimators=300, eta=0.1).fit(trainX, trainY)
probabilities = clf.predict_proba(testX)

Beloved trick of kagglers is to run bagging over complex algorithms. This is how it is done in REP:

from sklearn.ensemble import BaggingClassifier
clf = BaggingClassifier(base_estimator=XGBoostClassifier(), n_estimators=10)
# wrapping sklearn to REP wrapper
clf = SklearnClassifier(clf)

Another useful trick is to use folding instead of splitting data into train/test.
This is specially useful when you're using some kind of complex stacking

from rep.metaml import FoldingClassifier
clf = FoldingClassifier(TheanetsClassifier(), n_folds=3)
probabilities =, y).predict_proba(X)

In example above all data are splitted into 3 folds,
and each fold is predicted by classifier which was trained on other 2 folds.

Also REP classifiers provide report:

report = clf.test_on(testX, testY)
report.roc().plot() # plot ROC curve
from import RocAuc
# learning curves are useful when training GBDT!
report.learning_curve(RocAuc(), steps=10)  

You can read about other REP tools (like smart distributed grid search, folding and factory)
in documentation and howto examples.

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