Matrix Sum (DSP Blockset)

Sum the elements of a matrix along rows or columns.

Library

Matrix Functions, in Math Functions

Description

The Matrix Sum block sums the elements of an M-by-N input matrix u along either the rows or columns.

When the Sum along parameter is set to Rows, the block sums across the elements of each row and outputs the resulting M-by-1 vector.

This is equivalent to

y = sum(u,2)         % equivalent MATLAB code

When the Sum along parameter is set to Columns, the block sums down the elements of each column and outputs the resulting 1-by-N vector.

This is equivalent to

y = sum(u)           % equivalent MATLAB code

Dialog Box