How do I assign a vector to a logical matrix?

I currently have a logical matrix A representing a system's pupil. The matrix is 28x37, with 210 of the elements being logically true.

I also have vector B, of size 1x210.

I wish to assign the values of vector B to the true elements of matrix A, such that the result will be a 28x37 matrix with the values of vector B shown in the system's pupil.

I can use loops to scan for posisitve elements and then assign values to each element individually, but I sense there is a quicker way.

Any help would be much appreciated!

Answer 1

[Bruno Luong]

AA=zeros(size(A),'like',B)
AA(A)=B;
A=AA;
clear AA

[Ben Gore]

Thanks, this works!

[Bruno Luong]

Variant

A=double(A);
A(logical(A))=B;