function with variable amount of inputs
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Hello everybody,
maybe this is very simple question for you guys, but I'm trying to write a function in matlab that works when having just 2 inputs or more. I have been looking for a solution, but couldn't find exactly what I wanted. It is like this
function myfunction(x1,y1,x2,y2)
plot(x1,y1) %user just puts x1,y1
or
plot(x1,y1,x2,y2) %user puts x1,y1,x2,y2
end
I want the function to work, when the user just puts x1,y1 as input, but I also want it to work when the user puts x1,y1,x2,y2 and plot a figure.
Many thanks in advance.
Romano
采纳的回答
function myfun(x1,y1,x2,y2)
switch nargin
case 2
plot(x1,y1)
case 4
plot(x1,y1,x2,y2)
otherwise
error('This number of arguments is not supported')
end
end
Or for the general case you can use varargin: this has the disadvantage that the inputs are not named, so tab completion and the code helper tools will only show varargin instead of more useful variable names.
更多回答（1 个）
Walter Roberson
2016-4-11
0 个投票
See the documentation for varargin and nargin
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