Linear Discriminant Analysis using Shogun.

In this way, we will see what is Linear Discriminant Analysis and how to implement it using Shogun.

Recipe Objective

This recipe explains what is Linear Discriminant Analysis, how to implement it using Shogun
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Linear Discriminant Analysis

Linear Discriminant Analysis finds a linear classifier by finding a projection matrix that separates the provided classes. We assume that both classes are a Gaussian distributed with equal co-variance then the learned linear classification rule is optimal under this case.

x_train = RealFeatures(feats_train)
x_test = RealFeatures(feats_test)
y_train = BinaryLabels(labels_train)
y_test = BinaryLabels(labels_test)

z = LDA()
z.set_features(x_train)
z.set_labels(y_train)

z.train()
predict = lda.apply_binary(x_test)

eval = AccuracyMeasure()
accuracy = eval.evaluate(predict, y_test)

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