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

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.

Answer 1

[MathWorks Support Team]

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/