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how to select a randomly from the matrices?

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singh on 26 Mar 2015
Closed: MATLAB Answer Bot on 20 Aug 2021
I have 7 matrices every time, but I do not know how many rows there are in the matrices because rows are randomly inserted into the matrices. I want to choose one row in each of the 7 matrices randomly every time.
Thanks in advance

Answers (1)

James Tursa
James Tursa on 26 Mar 2015
To select a random row from a matrix:
the_matrix = your matrix
the_random_row = the_matrix(randi(size(the_matrix,1)),:);
singh on 27 Mar 2015
size of matrix is not equal and after the every execution size of matrix is not same with previous matrix
Image Analyst
Image Analyst on 27 Mar 2015
I don't see that that matters. Please give an example. Are your 7 matrices in a cell array, with 7 cells and one matrix in each cell? If so, use Stephen's answer. If they're separate matrices with separate unique names, use James's Answer. Otherwise, please give a sample of what form your data is in, and an example of the output you would like to get.

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