Arg max of a function

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Tina poddar
Tina poddar on 21 Nov 2020
Commented: Tina poddar on 28 Nov 2020
I have a doubt regarding finding arg max of a function m = x+y?
function m = equation(x,y)
k = x+y;
[max_value, max_ind] = max(k);
m = k(max_ind);
end
Thank you in advance
  6 Comments
Bruno Luong
Bruno Luong on 22 Nov 2020
No, argmax is the argument at which the function (in your case the array result of plus) is maximized (hence the name ARGMAX)
You should return "max_ind" or "sub2ind(size(k),max_ind)" rather than k(max_ind) (which is btw equal to max_value).
Tina poddar
Tina poddar on 28 Nov 2020
Thank you

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Answers (1)

Steven Lord
Steven Lord on 21 Nov 2020
The operator + does not and cannot return two output arguments. Nor can its functional form, plus.
As a hint, take a look at the examples on the documentation page for the max function and see if you can adapt one of those to your needs.
  1 Comment
Tina poddar
Tina poddar on 22 Nov 2020
Thank you for response
However though i have made changes i am not able to get matrices of max values for which the function has max value that is arg max.
Can you please help

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