[R] Minimization Problem
Stephan.Kolassa at gmx.de
Sun Jan 18 15:37:08 CET 2009
perhaps I'm misunderstanding your problem, but it seems to me that the
zero vector (yielding a zero vector after the multiplication) will
happily minimize everything you want.
Apart from that, you may want to look at the Optimization Task View on CRAN.
> Dear All,
> Could someone give me some pointers (just a guide as to what functions I
> need to look at would be fine)
> as to how I go about this simple problem please;
> The problem looks like this;
> Choose x1 to x4 such that you minimize the MAXIMUM ABSOLUTE value returned
> in the vector result of this matrix problem;
> [x1,x2,x3,x4].[ -0.38 -0.52 0.68 -0.29 ]
> [ -0.39 -0.42 -0.12 0.49 ]
> [ -0.40 -0.20 -0.45 0.26 ]
> [ -0.39 0.03 -0.39 -0.36 ]
> I hope the formatting comes out ok , I did this on a Mac !
> [[alternative HTML version deleted]]
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> and provide commented, minimal, self-contained, reproducible code.
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