calculate mean af cell

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fereshte
fereshte on 12 Jul 2014
Edited: fereshte on 13 Jul 2014
I have a cell with 30 rows., In each row there are 39 columns. Every ten folders belong to one person. For each column I want to calculate the average value for the ten folders and give this value instead of 10 different amounts. then do it for folders from 11 to 20 and 21 to 30.
  7 Comments
Azzi Abdelmalek
Azzi Abdelmalek on 13 Jul 2014
Edited: Azzi Abdelmalek on 13 Jul 2014
Each 10 rows from what?
fereshte
fereshte on 13 Jul 2014
rows from 1 to 10 is person one.from 11 to 20 is person two.and 21 to 30 is person three.i want use this cell for person identification

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Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 12 Jul 2014
Edited: Azzi Abdelmalek on 13 Jul 2014
clear out
m1=reshape(1:30,10,3);
for k=1:3
m=data_matrix(m1(:,k));
f=num2cell(reshape([m{:}],39,[])',1);
out{1,k}=arrayfun(@(x) mean(cell2mat(f{x}'),2),1:39,'un',0);
end
out=repmat(out,10,1)
out=out(:)
  9 Comments
Azzi Abdelmalek
Azzi Abdelmalek on 13 Jul 2014
Look at edited answer
fereshte
fereshte on 13 Jul 2014
Edited: fereshte on 13 Jul 2014
thank you so much.

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More Answers (1)

Roger Stafford
Roger Stafford on 12 Jul 2014
If your "cell" is an ordinary 'double' 30 x 39 array, A, do this:
B = [mean(A(1:10,:),1);mean(A(11:20,:),1);mean(A(21:30,:),1)];
or else this:
B = reshape(mean(reshape(A,10,[]),1),3,[]);
Either method should work.
  1 Comment
fereshte
fereshte on 12 Jul 2014
Edited: fereshte on 12 Jul 2014
i dont write this code.please help me :( my cell attached above its 30*1 cell.then in each cell there are 39 features that they are numerical. name of cell is data_all.mat. what write instead of A?

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