function

(/tools/hpmatlab/toolbox/matlab/lang/function.m)

Help text

FUNCTION Function M-files.
	New functions may be added to MATLAB's vocabulary if they
 	are expressed in terms of other existing functions. The 
 	commands and functions that comprise the new function must
 	be put in a file whose name defines the name of the new 
 	function, with a filename extension of '.m'. At the top of
	the file must be a line that contains the syntax definition
	for the new function. For example, the existence of a file 
	on disk called STAT.M with:
 
 	        function [mean,stdev] = stat(x)
 	        n = length(x);
 	        mean = sum(x) / n;
 	        stdev = sqrt(sum((x - mean).^2)/n);
 
 	defines a new function called STAT that calculates the 
 	mean and standard deviation of a vector. The variables
 	within the body of the function are all local variables.
 	See SCRIPT for procedures that work globally on the work-
 	space. 

	See also ECHO, SCRIPT.

Cross-Reference Information

sosdemo        /tools/hpmatlab/toolbox/signal/sosdemo.m
specplot       /tools/hpmatlab/toolbox/signal/specplot.m
spectrum       /tools/hpmatlab/toolbox/signal/spectrum.m
tfchk          /tools/hpmatlab/toolbox/signal/tfchk.m