Compact MATLAB matrix indexing notation

Question

I\'ve got an n-by-k sized matrix, containing k numbers per row. I want to use these k numbers as indexes into a k-dimensional matrix. Is there any compact way of doing so in

Answer 1

To treat the elements of the vector indexmatrix(row, :) as separate subscripts, you need the elements as a cell array. So, you could do something like this

subsCell = num2cell( indexmatrix( row, : ) );
finalTable( row ) = kDimensionalMatrix( subsCell{:} );

To expand subsCell as a comma-separated-list, unfortunately you do need the two separate lines. However, this code is independent of k.