A=[1,0,5,3,0;2,0,6,0,9;0,0,5,3,1];idx = randperm(size(A,1),1);[~,col,val]=find(A(idx,:)); changed=val+0.5*rand;
I want to make a new_A according to changed value. if
idx=2, changed=[2.11,6.11,9.11];
new_A should be
new_A=[1,0,5,3,0;2.11,0,6.11,0,9.11;0,0,5,3,1];
Best Answer