Plotting lower half of matrix
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Hi,
I have a matrix with values ONLY in the lower half (not even on diagonal). Everything else is zero.
I want to plot just this lower half using imagesc. Problem is there are values of zero in this lower half.
Is there a way around this? I tried tril
Thanks, S
1 个评论
Naz
2011-10-29
So, what's the problem with zeros? Imagesc should take pretty much all values.
回答（1 个）
Amith Kamath
2011-10-29
0 个投票
%I tried this:
X = rand(10,10); %My random pixel data for an image. imagesc(X); %Handles correctly.
L = tril(X); %To get the lower triangular part.
M = L.*(L > 0.5); % To introduce some artificial zeros into the lower triangular part.
imagesc(M); %This seems to display a good image too!
%Hope this helps!
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