Creating a function that removes full rows of non zero values

I am struggling to create a function that looks at each row of a matrix to see if it contains all non zero numbers. If it does, those rows get removed. Then, the remaining rows are shifted down and the number of rows that are removed need to get added back on the top as rows of zeros. So if two full rows are removed, everything should get shifted down and then two rows of zeros should be added to the top.

[Steven Lord]

This sounds like a homework assignment. If it is, show us the code you've written to try to solve the problem and ask a specific question about where you're having difficulty and we may be able to provide some guidance.

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Answer 1

[Walter Roberson]

The key here is to check

mask = any(MATRIX == 0, 2)

If there is at least one zero, then not all of the entries in the row are non-zero. So the rows selected by mask are the rows to keep.

For the other part: consider the sum(mask) ...