Not if Mr. excalibur really want interpolating (as oppose to smooting) splines. Other than linear, I'm not even sure if it can be done (though I'm no expert on this).
One possibility is to use the cobs package and play with the amount of smoothing... Andy From: Bert Gunter > > RSiteSearch("monotone", restr="func") will give you several > packages and > functions for monotone smoothing, including the isoreg() > function in the > standard stats package. You can determine if any of these > does what you > want. > > > Bert Gunter > Genetech Nonclinical Statistics > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of excalibur > Sent: Thursday, September 06, 2007 8:04 AM > To: r-help@stat.math.ethz.ch > Subject: Re: [R] Monotonic interpolation > > > > > Le jeu. 6 sept. à 09:45, excalibur a écrit : > > > > > Hello everybody, has anyone got a function for smooth monotonic > > interpolation > > (splines ...) of a univariate function (like a distribution > > function for > > example) ? > > approxfun() might be what your looking for. > > Is the result of approxfun() inevitably monotonic ? > -- > View this message in context: > http://www.nabble.com/Monotonic-interpolation-tf4392288.html#a12524568 > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > > > ------------------------------------------------------------------------------ Notice: This e-mail message, together with any attachments,...{{dropped}} ______________________________________________ R-help@stat.math.ethz.ch 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.