How to randomly extract 10 elements from that matrix
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i generate 1000*1 matrix through 'A=rand(100,1)'. And now i want to randomly extract 10 elements from that matrix.
How can i get that?!
回答（1 个）
A = rand(1000,1);
%10 random indices less than or equal to the number of elements in A
idx = randperm(numel(A),10)
out = A(idx)
2 个评论
Yoon Ju
2023-5-13
Dyuman Joshi
2023-5-14
"out" is just the variable to which I have assigned the output. You can change the name of the output as per what you want.
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2023-5-14
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