the problem with mean function

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Rica
Rica 2012-11-8
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 ?

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采纳的回答

Pedro Villena
Pedro Villena 2012-11-8
编辑：Pedro Villena 2012-11-8
mean_phase=mean(reshape(phase(1:25*floor(numel(phase)/25)),25,[]))

更多回答（1 个）

Rica
Rica 2012-11-8
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.
  1 个评论
Andrei Bobrov
Andrei Bobrov 2012-11-8
编辑：Andrei Bobrov 2012-11-8
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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