Different input variables depending on case within a switch ?

Question

ABDULAZIZ ALTUN 2020-6-12

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/547167-different-input-variables-depending-on-case-within-a-switch

编辑： Rik 2020-6-12

I am writting a function and one of the input of this function is a switch variable.

Depending on the case of the switch this function needs to take in different inputs to get the output from the case. Could this be done in Matlab or I should write 5 different functions?

%% Test: function description
function z = Test(key)
	switch key
        case 1
        	% inputs are a and c
        	z=a+c;
        case 2
        	% inputs are b and f 
        	z=b*f;
        end
end

As you can see for case 1, I need the function Test to take a and c hence

z=Test(key, a,c)

For case 2 I want it

z=Test(key, b,f)

How can I do this using nargin, nargout, varagin?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Rik 2020-6-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/547167-different-input-variables-depending-on-case-within-a-switch#answer_450156

编辑：Rik 2020-6-12

在 MATLAB Online 中打开

You can do this with nargin, nargout, varargin, and/or varargout.

Edit:

Note that this example does no input checking and will not result in a clear error if the number of arguments is incorrect.

%% Test: function description
function z = Test(key,varargin)
	switch key
        case 1
        	% inputs are a and c
                [a,c]=deal(varargin{:});
        	z=a+c;
        case 2
        	% inputs are b and f 
                [b,f]=deal(varargin{:});
        	z=b*f;
        end
end