How can I change a random element in a row of matrix?
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I want to change a random element in a row of matrix. example
A = ones(1,84)
I wish to change 6-8 column component to the randomly 2.
However, 2 of the 6-8 columns will be get out only once.
example A = [1,1,1,1,1,1,1,1,1,1,1,1,1...] ->change A = [1,1,1,1,1,2,1,1,1,1,1,1,2,1...]
I wrote the following code.
for q=6:6:84
if rand>0.5
A(1,q) =2;
end
end
for w=7:7:84
if rand>0.6
A(1,w)=2;
end
end
for e=8:8:84
if rand>0.7
A(1,w)=2;
end
end
But I did not produce the results you want.]
Ask for advice. Plz....
댓글 수: 3
Walter Roberson
2015년 11월 30일
Which columns are eligible to be changed?
Is it correct that out of all 84 columns, that exactly 6, 7, or 8 of them to be changed? So sum(A==2) would be 6, 7, or 8?
Or are you working in groups of columns, and out of each group of 8 columns, a certain number of them are to be changed randomly?
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