Hi Steve, Check the "splint" function in the "fields" package.
HTH, Jorge.- On Sat, Dec 1, 2012 at 11:09 PM, Steve Stephenson <> wrote: > Hallo, > I'm facing a problem and I would really appreciate your support. > I have to translate some Matalb code in R that I don't know very well but I > would like to. > I have to interpolate 5 point with a cubic spline function and then I > expect > my function returns the Y value as output a specific X value inside the > evaluation range. Let's suppose that: > 1- *X = [-10, -5, 0, 5, 10]* > 2 - *Y = [12, 10, 8, 7, 6]* > 3 - *I have to interpolate with a cubic spline assuming x=11* > > In Matlab I used this function: > > *y = interp1(X, Y, x, "cubic"); * > > How can I do the same in R? > Many thanks in advance for your reply and support! > Kindly > > Steve > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/cubic-spline-tp4651537.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.
