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randomly selecting an element without randsample

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cgo
cgo 2021년 4월 23일
답변: Walter Roberson 2021년 4월 23일
How do I randomly select an element without the machine learning toolbox function randsample?

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Walter Roberson
Walter Roberson 2021년 4월 23일
YourData(randi(numel(YourData), SIZE)) %select SIZE elements WITH REPETITION
YourData(randperm(numel(YourData), NUMBER)) %select NUMBER elements WITHOUT REPETITION
SIZE can be a vector of values such as [5 7] to generate a 5 x 7 matrix with repetition.
NUMBER must be a positive integer scalar; reshape() afterwards if you need to.

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