How to produce triangular heatmap without the baorder with imagesc?

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Faranak
Faranak 2023-4-29
评论： Faranak 2023-4-29
Ran in:
I am trying to produce a triangular correlation plot. I can do that by putting NaNs for the upper or lower part, but then baorder showing the boundaries is also being ploted. is there way to remove it?
and produce something like this:
I attach my code and the fiugre example:
for i=1:25
for j=1:25
if i<j
aaa(i,j)=0;
else
aaa(i,j)=rand(1);
end
end
end
imagesc(aaa)
colormap(flipud(gray))

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采纳的回答

Cris LaPierre
Cris LaPierre 2023-4-29
Ran in:
Are you talking about the axes outline? If so, use the box function to turn it off
for i=1:25
for j=1:25
if i<j
aaa(i,j)=0;
else
aaa(i,j)=rand(1);
end
end
end
imagesc(aaa)
box off
colormap(flipud(gray))
You may also find this answer helpful: https://www.mathworks.com/matlabcentral/answers/97101-how-do-i-remove-the-border-lines-surrounding-an-axes

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