Reshape each row of matrix into separate matrices

Trying to reshape each row of a 6x256 into six separate 16x16 matrices. I know how to reshape A row, but I can't get it to work in a 'for' loop to save each matrix separately:

for I=1:6
  % mat=reshape(data(I,:),16,16)
end

mat keeps getting written over and mat(I) crashes. I could hard code it but... I've also looked at other row-wise Q&As and they have not helped me. Thanks.

Answer 1

[James Tursa]

You could use a cell array. E.g.,

mat{I} = reshape(data(I,:),16,16)

[Steph Varga]

Awesome, thank you so much!

[Karthi Ramachandran]

This is not working. MATLAB R 2022a

DCM is matrix of size 10 x 9

for i= 1:length(10)

DCMnew{i} = reshape(DCM(i,:),3,3);

end

Any Suggestions?

[Stephen23]

"Any Suggestions?"

Look at your code again:

for i = 1:length(10)    

10 is a scalar, so LENGTH(10) will be 1. So your loop is equivalent to

for i = 1:1

which will only iterate once. Not very useful. Most likely you want this:

for i = 1:10

You could have debugged this yourself by looking at the value of i after the loop, and thinking about why it was i==1 and not i==10. Debugging means investigating what code is actually doing (not what you think it is doing).

Answer 2

[Walter Roberson]

cellfun(@(v) reshape(v, 16,16),mat2cell(data, ones(1,6), 256),'Uniform', 0)