matrix of zeros and ones within number of zeros in each rows in-between a limit
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Biswanath Mahanty
am 9 Okt. 2015
Kommentiert: Image Analyst
am 10 Okt. 2015
want to have a 30x40 matrix of zeros and ones; however in each row total number of 'ones' must be within 10 to 20.
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Thorsten
am 9 Okt. 2015
Bearbeitet: Thorsten
am 9 Okt. 2015
A = zeros(40,30);
Omin = 10; Omax = 20;
for i = 1:size(A, 2)
r = randperm(40);
ind = r(1:(Omin-1) + randi(Omax - Omin +1)) + (i-1)*40;
A(ind) = 1;
end
A = A';
imshow(A)
sum(A,2)
2 Kommentare
Image Analyst
am 10 Okt. 2015
Go ahead and mark it as "Accepted" then, so he gets reputation points.
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John D'Errico
am 9 Okt. 2015
So generate a matrix with random ones and zeros. Discard any rows that fail this test, and regenerate just those rows. WTP?
Since you have not said what the distribution of the number of ones is, I cannot offer a complete solution, but it is simple in any case. If you will have 17 ones in a row, then generate a row vector with 17 ones, and 23 zeros. Then randomly permute the elements.
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