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How do I fix error: Index exceeds matrix dimensions?
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I want to make a loop where I calculate the mean of my 35040x12datamatrix for every 24 datapoint, but I get an error: Error using dataset/subsref (line 616) Index exceeds matrix dimensions.
for i=1:24:35040
Xday(icount,:)=mean(A.data(i:24*i,:));
icount=icount+1;
end
What am I doing wrong? Thanks
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Réponses (2)
James Tursa
le 3 Fév 2016
Modifié(e) : James Tursa
le 3 Fév 2016
Try this:
for i=1:24:35040
Xday(icount,:)=mean(A.data(i:(i+23),:)); % <-- Changed 24*i to i+23
icount=icount+1;
end
Or a vectorized way:
Xday = reshape(mean(reshape(A.data,24,[])),1460,[]);
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Lilja Dahl
le 3 Fév 2016
2 commentaires
James Tursa
le 3 Fév 2016
Modifié(e) : James Tursa
le 3 Fév 2016
For the loop, did you preallocate Xday? E.g., Xday = zeros(1460,12). And did you initialize icount = 1?
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