Re: [R] Optimum of lm

> I am trying to do some D o E. I would like to find > the optima > (maxima) of a 2 dimensional lm with quadratic terms. > I'm sure there is a really simple solution but i can't find it. At least part of this problem is solved by the rsm package; that fits a quadratic response surface

[R] Optimum of lm

Hi All, I am trying to do some D o E. I would like to find the optima (maxima) of a 2 dimensional lm with quadratic terms. I'm sure there is a really simple solution but i can't find it. Also would there be any way to find some sort of confidence limits on these optima? Any help most app