generating random values from another matrix with a random value in rows only

Hi I have this code

X = rand(113,401); % sample matrix
% generate random indices and use them to pull values from A
B = X(round(rand(11300,401)*(numel(X)-1))+1);

but i want only exchange randomly in the row so value in row 1 in X can go randomly in any rows in B matrix only not in any column of B matrix

Answer 1

[James Tursa]

Is something like this what you want? Randomly distributed values from X but staying in same column?

X = whatever
rows = desired number of rows of the result B
[M,N] = size(X);
B = X(bsxfun(@plus,randi(M,rows,N),M*(0:N-1)));