How to divide matrix with dimension 300x564 to many submatrices

Dear,

I tried to divided a matrix with dimension 300x564 to four or two or even 12 matrices in this code but it give error while for a matrix 500x500 or 100x100 it ok. I change h to the number of sub matrices I want. I have problem with reshape.

[m,n]=size(res);
h=2; 
nn=fix(n/(n/h));
m1=n-nn;
res(:,end+1:end+mod(2-m1,2))=nan;
A=res(:,1:end);
B=reshape(A,n,n/h,[]);
[m,n,p]=size(B);
OUT=zeros(m,n,p);

I got this error.

Error using reshape Product of known dimensions, 79524, not divisible into total number of elements, 169200.

 Error in SRBM (line 22)
  B=reshape(A,n,n/4,[]);

and Error using reshape Product of known dimensions, 159048, not divisible into total number of elements, 169200, if I want to divide for two submatrices.

thanks for any help.

Nadia

Answer 1

[Walter Roberson]

B=reshape(A,n/h,h,[]);

[nadia nadi]

Dear Walter,

I wrote it like this

[m,n]=size(res);
h=4; 
nn=fix(n/(n/h));
m1=n-nn;
res(:,end+1:end+mod(2-m1,2))=nan;
A=res(:,1:end);
B=reshape(A,m,n/h,[]);

Now it works.

many thanks,

Nadia