How can I divide a matrix by its columns ?
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Hi,
for example:
[ 1 35 37 29 312
1 321 421 2 34
1 329 412 32 54
.
.
.
4 421 348 48 445
4 48 49 41 394 ]
Can I segregate this matrix in small matrix based on the first column ?
Example:
A = [ 1 35 37 29 312
1 321 421 2 34
1 329 412 32 54]
B =...
C =...
D = [ 4 421 348 48 445
4 48 49 41 394 ]
Andre
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the cyclist
2014-4-23
编辑:the cyclist
2014-4-23
Yes, use the accepted answer from Azzi that is posted here. Just choose the 1st column instead of the 4th column.
Namely, if your original matrix is called A, then
[ii,jj,kk] = unique(A(:,1))
out = accumarray(kk,1:numel(kk),[],@(x) {A(x,:)})
celldisp(out)
You will see that "out" is a cell array, where each cell has one of the smaller matrices you want.
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