Function Arguments Using Nargin
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I want to control the arguments (data sets) in a function to plot. So if I push in only one data set (x1,y1) into the function, it will plot that data and not get an error that x2 is empty or cleared variable. Or if I push in two data sets (x1,y1,x2,y2) it will plot that. Here is the code:
%.........................
%testing data set
%.........................
x1 = [1 1 1 1 1];
y1 = [1 2 3 4 5];
x2 = [2 2 2 2 2];
y2 = [1 2 3 4 5];
%...........................
function plotinputs(x1,y2,x2,y2)
if nargin == 2
plot(x1,y1)
else nargin == 4
plot(x1,y1,x2,y2)
end
Thanks, Amanda
3 个评论
per isakson
2013-2-27
What happened when you tested the code?
Muthu Annamalai
2013-2-27
Amanda what you are looking at is called 'varargin' documented with usable examples http://www.mathworks.com/help/matlab/ref/varargin.html
You need to process the cell array 'varargin' according to the number of args, which you already know, is 'nargin'.
You have all the pieces right, and you only need the right 'varagin' bits.
Amanda
2013-2-27
回答（1 个）
Azzi Abdelmalek
2013-2-27
编辑：Azzi Abdelmalek
2013-2-27
There is an error
function plotinputs(x1,y2,x2,y2)
it should be
function plotinputs(x1,y1,x2,y2)
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