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Split the long vector into shorter ones

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Hi!
I have a long vector that I want to split into the shorter ones. The vector contains only ones and zeros. I would like to split the vector from 1 to the next 1 (and not including this 1). For example, I have a 17x1 vector A = [1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0] . I want to split it into smaller ones. So in the end I would like to have: В = [1 0 0 0], С = [1 0 0 0 0], D = [1 0 0 0 0 0], E = [1 0]. How can I do it?
Thanks a lot fot any help!

Accepted Answer

Ameer Hamza
Ameer Hamza on 20 May 2020
Edited: Ameer Hamza on 20 May 2020
Try this
A = [1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0];
groups = cumsum(A);
B = splitapply(@(x) {x}, A, groups);
It creates a cell array with split arrays. This link show why you should avoid naming variables B, C, D, .. : https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval
  5 Comments
Ameer Hamza
Ameer Hamza on 20 May 2020
Following will work if A is the matrix with last column 0 and 1.
groups = cumsum(A(:,end));
B = splitapply(@(x) {x}, A, groups);
Daria Ivanchenko
Daria Ivanchenko on 21 May 2020
Yes, it works! Thank you so much!!!

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