Machine Learning con Python: costruire algoritmi per generare conoscenza (Italian Edition) by Sebastian Raschka

Author:Sebastian Raschka [Raschka, Sebastian]
Language: ita
Format: azw3, epub
ISBN: 9788850317912
Publisher: Feltrinelli Editore
Published: 2017-09-30T04:00:00+00:00

Parameters

----------

X : {array-like, sparse matrix},

Shape = [n_samples, n_features]

Matrix of training samples.

Returns

----------

maj_vote : array-like, shape = [n_samples]

Predicted class labels.

"""

if self.vote == 'probability':

maj_vote = np.argmax(self.predict_proba(X),

axis=1)

else: # 'classlabel' vote

# Collect results from clf.predict calls

predictions = np.asarray([clf.predict(X)

for clf in

self.classifiers_]).T

maj_vote = np.apply_along_axis(

lambda x:

np.argmax(np.bincount(x,

weights=self.weights)),

axis=1,

arr=predictions)

maj_vote = self.lablenc_.inverse_transform(maj_vote)

return maj_vote

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