My imagesc plot seems to be inverted

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fadams18
fadams18 2022-2-24
评论： Rik 2022-2-24
Below is my code. and the attached plot .
Mloops = [1,10:10:90];
Missing=10:10:90;
for e = 1:length(Mloops)
eta =Mloops(e);
for i=1:length(Missing)
mv= Missing(i);
load( ['res/res_',int2str(eta),'_',int2str(mv),'.mat'] ,'RRE_NeA');
sumRRE(i) = mean( RRE_NeA(RRE_NeA< 1e-5));
end
RRE(:,e) = sumRRE;
clear summRRE;
end
eta = [1,10:10:90];
mv = [10:10:90];
imagesc(eta, mv,RRE); colorbar()
set(gca, 'YDir','normal')
xlabel('Maxloops'); ylabel(' MV ');
I expect to have a better error for Maxloops values > 30 ish. but it seems to me, its the inverse it is showing. my raw values shows that my results are correct but the plot doesnt.
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fadams18
fadams18 2022-2-24
Its the relative reconstruction error. im doing some low rank approximations. So a high error means low value. so it should be around the blue. if the value is very small. meaning the error is low. so it should be around the yellow. and my experiment is such that, for high values of the eta( x-axis) and low values of MV (y-axis) I expect the error to become very low hence orange-yellow colors.
Rik
Rik 2022-2-24
Well, since you didn't post your data (looks like a 10x10 array), I can't really look at the numbers alongside the plot itself.

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