the problem with mean function

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Rica
Rica am 8 Nov. 2012
i use this function to build the mean of vector:
% mean_phase=mean(reshape(phase(:),25,[]))
i get this error with the size of the vector:
*Product of known dimensions, 25, not divisible into total number of elements*
How could i solve this Problem ?

Akzeptierte Antwort

Pedro Villena
Pedro Villena am 8 Nov. 2012
Bearbeitet: Pedro Villena am 8 Nov. 2012
mean_phase=mean(reshape(phase(1:25*floor(numel(phase)/25)),25,[]))

Weitere Antworten (1)

Rica
Rica am 8 Nov. 2012
thanks. But my task is to have a mean value each 25 Value. I thought abaout adding some zeros at the end of the array to get the appropriate length. I do not how.
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Andrei Bobrov
Andrei Bobrov am 8 Nov. 2012
Bearbeitet: Andrei Bobrov am 8 Nov. 2012
use Statistics Toolbox
nanmean(reshape([phase(:);nan(mod(-numel(phase),25),1)],25,[]));
or use Image Processing Toolbox
blockproc(phase(:),[25,1],@(x)mean(x.data));

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