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Let's use a One-vs-the-rest classifier on the iris dataset. The data has four features that describe features of three types of iris flowers.
from sklearn import datasets from sklearn.multiclass import OneVsRestClassifier from sklearn.svm import LinearSVC from sklearn import cross_validation iris = datasets.load_iris() X, y = iris.data, iris.target classifier = OneVsRestClassifier(LinearSVC()) print cross_validation.cross_val_score(classifier, X, y, cv=5)