X-Stream Operator’s Manual 
WM-OM-E Rev I  321 
Convolve two signals. 
 
Creating your own MATLAB function 
The procedure is simple. Create a MATLAB function using any text editor, and save it as a 
MATLAB m-file by giving it a name of the form Filename.m. Call the function using the MATLAB 
math editor or the MATLAB parameter editor as appropriate. A simple example is shown below. 
function out = negatewf(wf1) 
% NEGATEWF changes the sign of all the data. 
out = -wf1;