Generating Plots From Cell Array
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Hello,
I have a cell array (3 x 4), called output, containing a 1024 x 1024 matrix in each cell. I want to plot the 4 matrices in ouput{1,:}. Furthermore, I have a structure, called dinfo, which correspondingly contains the names of each matrix (field with matrix names = "name"). I want each image to be titled with its name. Here is the code I have written thus far:
for i = 1:length(output{1,:})
figure
imagesc(output{1,i});
colormap('jet')
colorbar;
title(num2str(dinfo.name(i)))
end
I keep getting the error that "length has too many input arguments". If I change the code to avoid the length function-related error:
for i = 1:4
figure
imagesc(output{1,i});
colormap('jet')
colorbar;
title(num2str(dinfo.name(i)))
end
I get the error, "Expected one output from a curly brace or dot indexing expression, but there were 4 results".
Any thoughts on how I could resolve both of these errors?
Thank you for your time :)
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Star Strider
2017-8-25
This works for me (in R2017a):
dinfo.name = [1,2,3,4]; % Create Structure
output = {rand(5), rand(5), rand(5), rand(5)}; % Create Cell Array
for i = 1:length(output)
figure
imagesc(output{1,i});
colormap('jet')
colorbar;
title(num2str(dinfo.name(i)))
end
2 个评论
Star Strider
2017-8-25
I’m lost.
You initially wrote ‘I have a cell array (3 x 4), called output’, so I created a cell array to (successfully) test my code. Now it seems you’re addressing a structure, and structure referencing is different. I don’t have your structure array, so I can’t write code specifically to reference it in your loop. Please see the documentation on Access Data in a Structure Array (link) for details.
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