colorbar graph exceeding matrix values
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So I'm plotting a 4D matrix, called Ft, that ranges from 0-1, but when I graph it and add a colorbar, it's showing 0-2 for physical states 4-15, and (-1)-1for physical state 1-3
physical states 1-3 are 0 for every timestep in the matrix Ft, so that first graph makes sense. Why does the colorbar range change for the other graphs?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1751284/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1751289/image.png)
Here's the code for the graphs. Let me know if more code is needed to create the actual Ft matrix. [[ my entire code would be needed in order to create this matrix ]]
%the setup of Ft is Ft(state,est of patch1,est of patch2,timestep)
B = permute(Ft,[2 3 1 4]);
for state= 1:15
figure(state)
sgtitle(['physical state = ' num2str(state)])
time = 1;
subplot(4,5,time)
imagesc(B(:,:,state,time))
title(['timestep : ' num2str(time)])
xlabel('est. of patch 2 quality');
ylabel('est. of patch 1 quality');
set(gca,'ydir','normal')
for time = 2:19
subplot(4,5,time)
imagesc(B(:,:,state,time))
title(num2str(time))
set(gca,'ydir','normal')
for time = 20
subplot(4,5,time)
imagesc(B(:,:,state,time))
title(num2str(time))
set(gca,'ydir','normal')
colormap hot
colorbar
hold on
end
end
end
2 Comments
Voss
on 12 Aug 2024 at 18:15
The colorbar only applies to the 20th subplot.
For example, in the case of state == 7, the colorbar tells us that Ft(7,:,:,20) is 1 everywhere; the colorbar says nothing about Ft(7,:,:,1), Ft(7,:,:,2), or the value of Ft at any other time.
Accepted Answer
Matt J
on 12 Aug 2024 at 17:58
Edited: Matt J
on 12 Aug 2024 at 19:10
You haven't attached Ft for us to examine, so we have no way to verify your claim that the data is bounded to [0,1]. Regardless, you can explicitly bound the colorbar range by using imagesc's clim argument, e.g.,
imagesc(B(:,:,state,time) ,[0,1])
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