Change of sign in a matrix one by one
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Hi to all the users. I have a matrix A = ones(5), I want to change the sign of elements one by one but under the condition with rand(1).
Pick random position 1 in A then take rand_number = rand(1) if rand_number>=0.5 fix that 1 to -1
else 1 remains 1 then again pick 1 from the remaining 1s in the matrix A continue till all ones go to -1
Hope i have explained well.