))
return(res)
}
curve(umax, c(c(2,1),c(2,1)), c(10,100))
--
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On Wed, 13 Oct 2010, jcress410 wrote:
u - function(x) {
x1 - x[1]
x2 - x[2]
(x1^alpha)*(x2^(1-alpha))
}
utility - function(x) x[1]^(alpha)*x[2]^(1-alpha)
p - c(2,1)
i - -100
alpha - .3
umax - function(p,i,u) {
res - constrOptim(c(.5,.5), u, grad=NULL, ui=-p, ci=i, mu = 1e-04,
-optimization-and-curve-tp2992244p2992833.html
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PLEASE do read the posting guide http://www.R-project.org/posting
See ?persp
Also there are some really good examples on 3D plots in rgl package.
Best,
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