Replacing elements in Array
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I have two 48 x 61 matrices, LE and Q. If the first and last row value of LE are the same, for those rows, I want the values of Q to equal Q(:, 61).
This is what I initially wrote, but am getting an error message.
C = find(LE(:,1) == LE(:,61)); % Outputs rows in which first and last values are equivalent.
Q(C,:) = Q(C, 61); % For all values in rows C, make every value in that row (of Q) the last value in row Q.
Error: subscript assignment dimension mismatch.
Any suggestions? Thanks!
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Image Analyst
2012년 7월 20일
It's always nice if the poster supplies some sample data in advance to make it easy for people to try things for her. I mean, why make it hard for people to help you?
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Albert Yam
2012년 7월 20일
When length(C) > 1 , Matlab doesn't know how to replace the values.
(length(C) x 61) matrix , and a length(C) vector
If you loop it for every C, it should work, someone else might be able to point out a way without looping.
C = find(LE(:,1) == LE(:,61));
for ii=1:length(C)
Q(C(ii),:) = Q(C(ii), 61);
end
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