Re: [R] Derivative of nonparametric curve

2009-09-14 Thread FMH
Thank you - Original Message From: spencerg To: "Liaw, Andy" Cc: Rolf Turner ; FMH ; r-help@r-project.org Sent: Wednesday, September 9, 2009 3:08:43 PM Subject: Re: [R] Derivative of nonparametric curve     This may be overkill for your application, but you might be int

Re: [R] Derivative of nonparametric curve

2009-09-09 Thread spencerg
This may be overkill for your application, but you might be interested in the "fda" package, for which a new book appeared a couple of months ago: "Functional Data Analysis with R and Matlab" (Springer Use R! series, by Ramsay, Hooker and Graves; I'm the third author). The package inclu

Re: [R] Derivative of nonparametric curve

2009-09-09 Thread Liaw, Andy
From: Rolf Turner > > On 8/09/2009, at 9:07 PM, FMH wrote: > > > Dear All, > > > > I'm looking for a way on computing the derivative of first and > > second order of a smoothing curve produced by a nonprametric > > regression. For instance, if we run the R script below, a smooth > > nonpara

Re: [R] Derivative of nonparametric curve

2009-09-08 Thread Rolf Turner
On 8/09/2009, at 9:07 PM, FMH wrote: Dear All, I'm looking for a way on computing the derivative of first and second order of a smoothing curve produced by a nonprametric regression. For instance, if we run the R script below, a smooth nonparametric regression curve is produced. provid

[R] Derivative of nonparametric curve

2009-09-08 Thread FMH
Dear All, I'm looking for a way on computing the derivative of first and second order of a smoothing curve produced by a nonprametric regression. For instance, if we run the R script below, a smooth nonparametric regression curve is produced. provide.data(trawl) Zone92   <- (Year == 0 & Zone =