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How to change the MIN function?

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Cristian
Cristian el 9 de Mayo de 2014
Comentada: Geoff Hayes el 12 de Mayo de 2014
I wrote a function:
function MIN = mymin(vec)
MIN = vec(1);
for i1 = 2:length(vec)
if MIN > vec(i1), MIN = vec(i1);
end
end
end
I need to satisfy the condition: The function is not receiving a vector; rather, all the values are separate arguments.
How to do it?

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Geoff Hayes
Geoff Hayes el 9 de Mayo de 2014
Editada: Geoff Hayes el 9 de Mayo de 2014
Sounds like there are a variable number of inputs to this function. So your function can be used like:
mina = mymin(1,2,3,4,5); % five inputs
minb = mymin(4.5,9,3); % three inputs
If that is the case, then you want to use the varargin (variable arguments in) input variable in your function signature:
function minval = mymin(varargin)
% varargin is a cell array
The number of arguments in, nargin, is something you can use in your function body to indicate how many inputs have been passed to your function. Try the above and see what happens.
  2 comentarios
Cristian
Cristian el 9 de Mayo de 2014
This correctly?
function M=mymin(varargin)
M=varargin{1};
for i1 = 2:numel(varargin)
if M > varargin{i1}
M = varargin{i1};
end
end
end
Geoff Hayes
Geoff Hayes el 12 de Mayo de 2014
Yes, that looks to he correct. Try using nargin too.

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