Could anyone help me how to randomly display the values in the selected places

Could anyone help me how to randomly display the values in any of the selected places

     1
     3
     4
     5
     8
     9
    10
    11
    13
    15

of (3,5) matrix under the condition that under the condition that every rows and columns should be selected with one above mentioned places.

[TADA]

possible duplicate

https://www.mathworks.com/matlabcentral/answers/465585-could-anyone-help-me-to-solve-the-issue

https://www.mathworks.com/matlabcentral/answers/465579-could-anyone-help-me-to-solve-the-issue-in-the-following-code

look at comments below

Answer 1

[TADA]

if you meant to fetch values from a random index using above mentioned linear indices:

a = magic(5);
a = a(1:3,:);

validIndices = [1,3,4,5,8,9,10,11,13,15];

i = validIndices(randperm(numel(validIndices),1));

x = a(i)

but if you meant to use them as subsets (i.e a(i,j)), you have a problem, because these subsets are larger than your specified matrix, and will almost always result in an error

[jaah navi]

it gives only one value but i want to every row and every column one non zero vaue.

[TADA]

well, that cannot be understood from your question

[TADA]

also that makes this question a duplicate if im not mistaken....