Splitting 1 column array

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Nancy
Nancy le 15 Août 2012
Hi all,
I have various column matrices with varying number of elements from 38-202. I want to split each matrix into 5 small matrices each containing the same number of elements. The distribution of numbers into each can be random. If the original matrix has more elements, some can be ignored as well. Like for example if the original matrix has 204 elements and I want to split it into 5 matrices. So only 200 elements can be shuffled and 4 need to be ignored.
Is there any function in MATLAB I can use?
Nancy
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Azzi Abdelmalek
Azzi Abdelmalek le 15 Août 2012
are the matrix square?

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Walter Roberson
Walter Roberson le 16 Août 2012
num_subsets = 5;
matlen = length(YourVector);
num_to_use = matlen - mod( matlen, num_subsets );
idx = randperm(matlen);
shuffled = YourVector(idx(1:num_to_use));
subsets = reshape(shuffled, [], num_subsets);
The subsets would then be the columns.
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Walter Roberson
Walter Roberson le 16 Août 2012
Yes, but I did indicate that the subsets would be the columns. Splitting into individual matrices is usually not a good idea in this kind of situation.
Nancy
Nancy le 16 Août 2012
Works perfectly. Thanks Walter :)

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Azzi Abdelmalek
Azzi Abdelmalek le 15 Août 2012
example
A=rand(102,2);B=A(1:100,:)
result=reshape(B,5,8,5)
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Walter Roberson
Walter Roberson le 16 Août 2012
Not quite, as that does not do any shuffling.

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