the meaning of "[~," in a matrix
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Hi
my friend send to me a code that I don`t understand a line of it. The line is:
[~ , x_opt] = min(g); % g is the cost function vector
my question is that what is the meaning of "[~," in a matrix?
thanks
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Accepted Answer
Star Strider
on 25 Mar 2016
The tilde ‘~’ in a function output tells MATLAB to not import that output in the calling function workspace. The min function can produce two outputs, the minimum (the first output) and the index of the first instance of the minimum value for the second. In the code you quoted, whoever wrote it was only interested in the index.
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