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i have 50x5 matrix, i want to delete some of the rows but unfortunately the rows which i want to delete are not at equal interval,so i need help

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ellora
ellora 2016-6-7
编辑： the cyclist 2016-6-7
i want delete the rows which contains first two rows and last 3 rows of every constant value of 1st column 3 zeros.

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the cyclist
the cyclist 2016-6-7
编辑：the cyclist 2016-6-7
If you have loaded the data into a matrix "M", then you can do this with
deleteRowIndex = ismember(M(:,end-2:end),[0 0 0],'rows');
M(deleteRowIndex,:) = [];
This takes advantage of the fact that the rows you want to delete are of the form
[a b 0 0 0]

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