Lavan <[EMAIL PROTECTED]> wrote in news:[EMAIL PROTECTED]:
> > Hi, I posted this message earlier in "Rmetrics" and I don't know > whether I posted in the wrong place, so I'm posting it again in > Rhelp. > > I have a function in x and y and let's call it f(x,y). I need to get > the Hessian matrix. i.e I need (d^2f/dx^2), (d^2f/dxdy), > (d^2f/dydx), (d^2f/dy^2).I can get these using the D function. now I > need to evaluste the hessian matrix for -5<x<5 and -2<y<2 and I also > need to print the output. > > I tried using a for loop,but it is giving me an error. I was wondering if the fact that you provide neither an example nor even the text of the error that could be the explanation for no response. -- David Winsemius ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
