How can I use "datasample" to get multiple samples without a loop?

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MathWorks Support Team
编辑： MathWorks Support Team 2025-2-4
How can I create "n" samples of size "k" using "datasample" without needing a "for" loop?
To access detailed documentation on the "datasample" function, execute the following command in MATLAB R2020b:
>> web(fullfile(docroot, 'stats/datasample.html'))
For example, if I want to sample from a 500 element vector in samples of 20, but do that 30 times, I've got to create a loop from i=1:30 with "datasample" inside that loop.

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MathWorks Support Team
编辑：MathWorks Support Team 2025-2-4
To create multiple samples of a certain size, you can use the "reshape" command after generating all the values needed. For example:
>> x = rand([500,1]); >> sampleSize = 20; >> numSamples = 30; >> y = datasample(x, sampleSize * numSamples); >> z = reshape(y, [numSamples, sampleSize]);
To access the documentation for "reshape," execute the following command in MATLAB R2020b:
>> web(fullfile(docroot, 'matlab/ref/reshape.html'))
Please follow the link below to search for the required information regarding the current release:
https://www.mathworks.com/help/

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