[R] optimization problem

[tedzzx]

If I want to find out the globle minia, how shoul I change my code?
Thanks a lot

Armin Meier wrote:
> 
> Hi,
> I guess your function has several local minima and depending on where
> you start, i.e. your initial variables, you get into another mimimum.
> 
> HTH
> Armin
> 
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