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dividerand

Divide targets into three sets using random indices

Description

example

[trainInd,valInd,testInd] = dividerand(Q,trainRatio,valRatio,testRatio) takes the number of targets to divide up, the ratio of vectors for training, the ratio of vectors for validation, and the ratio of vectors for testing, and returns the training indices, the validation indices, and the test indices.

Examples

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This example shows how to obtain the training, validation, and test indices using the dividerand function.

Divide 3000 samples into 60% for training, 20% for validation, and 20% for testing.

[trainInd,valInd,testInd] = dividerand(3000,0.6,0.2,0.2)

Input Arguments

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Number of targets to divide up, specified as a scalar.

Ratio of vectors for training, specified as a scalar.

Ratio of vectors for validation, specified as a scalar.

Ratio of vectors for testing, specified as a scalar.

Output Arguments

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Training indices, returned as a row vector.

Validation indices, returned as a row vector.

Testing indices, returned as a row vector.

More About

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Network Use

Here are the network properties that define which data division function to use, what its parameters are, and what aspects of targets are divided up, when train is called.

net.divideFcn
net.divideParam
net.divideMode
Introduced in R2008a