Find index in each column of a matrix using for

Question

Cary 2015-6-28

0
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https://ww2.mathworks.cn/matlabcentral/answers/225611-find-index-in-each-column-of-a-matrix-using-for

评论： Star Strider 2015-6-28

Good evening,

I am attempting to find the index of the last non-NaN for each column in a matrix. I can't really get it to work correctly; instead of giving me a column vector of indices, it sums the indices together in every cell. Here is my code:

xDate=zeros(1,size(forward,2)); % preallocate a vector
xDate=xDate'; % transpose to a column
for i = 1:size(forward,2)
    xDate(i) = find(~isnan(forward),1,'last')
end

I'm sure it is an easy fix; but I've been racking my brain on it for hours now with no solution.

Thanks to all who are generous enough to help.