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How to form a binary matrix from a given two vectors?

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Asaf McRock
Asaf McRock on 29 Nov 2020
Commented: Ameer Hamza on 29 Nov 2020
Hi everyone,
Say I have two vectors with two different sizes:
Vector A has ten positive integers ( 1:10) and vector B has 100 positive integers (1:100). I am planning to create a matrix where its size is 10 by 100.
The row picture of matrix C:
the first raw has ones values in the 1-10 columns and zeros elsewhere.
the second raw has ones values in the 11-20 columns and zeros elsewhere.
the third raw has ones values in the third 21-30 columns and zeros elsewhere.
and so on for the other raws in the same pattern.
Your ideas and help would be greatly appreciated!

Accepted Answer

Ameer Hamza
Ameer Hamza on 29 Nov 2020
Edited: Ameer Hamza on 29 Nov 2020
I am not sure how the elements of B are used in C. Consider following code
A = 1:10;
n = 10;
C = arrayfun(@(x) {repmat(x, 1, n)}, A);
C = blkdiag(C{:})
or
C = mat2cell(repelem(A, 1, n), 1, n*ones(size(A)));
C = blkdiag(C{:})
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