MATLAB: How to create a variable for subscripts of an array

Question

Hello all,

I want to create and use a single variable for subscript range of a multi-dimensional array. I know for a 1D-array I can do:

array=ones(20,1);
indices=5:10;
array(indices)=0;

I tried something like this for a 3D-array, but it didnt work:

array=ones(10,10,10);
indices=[2:5,3:6,4:7];
array(indices)=0;

but it didnt work. Is it possible to create a variable that I can use in such manner? Thank you.

Answer 1

You need to convert your subscript indices into linear indices. You do that with sub2ind:

array(sub2ind(size(array), indices)) = 0;

edit: completely misread the question. The above is completely wrong. See discussion in the comments. The correct answer should have been:

indices = {2:5, 3:6, 4:7};
array(indices{:}) = 0;