Dear all,
suppose I have a bi-variate function f(x,y), I want to find the maxima. I define x and y vector, and get matrix z=f(x,y). how can I get which (x0,y0) makes z become the maxima?
If you have function values as matrix, you may simply use:
which(z==max(z), arr.ind=TRUE)
or you can consider to use an optimization algorithm directly on your function, see ?optim or ?nlm.
Hope it helps
Thomas P.
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