Kjetil and Andy, Thanks for your helpful answers! The first two (mgcv and fda) seem to be in the direction I'm looking for. I downloaded them both.
I'm running into a lot of implementation difficulties, though. I wonder if there's anyone who tried to do a monotone spline using either the 'mgcv' or the 'fda' packages, whom I could ask directly? Thanks again, Assaf -----Original Message----- From: Kjetil Halvorsen [mailto:[EMAIL PROTECTED] Sent: Monday, July 12, 2004 4:32 PM To: Assaf P Oron Cc: [EMAIL PROTECTED] Subject: Re: [R] Smooth monotone estimation on R help.search() on my machine turns up only: mono.con(mgcv) Monotonicity constraints for a cubic regression spline. smooth.monotone(fda) Monotone Smoothing of Data pmreg(ftnonpar) Piecewise monotone regression with taut strings backSpline(splines) Monotone Inverse Spline isoreg(stats) Isotonic / Monotone Regression so you should find something of use in packages mgvc, fda, ftnonpar, splines or stats (.loaded by default) Kjetil Halvorsen Assaf P Oron wrote: >Hi all, > >I'm looking for smooth monotone estimation packages, preferably using splines. > >I downloaded the 'cobs' package and intend to use it, but since it offers only quadratic splines based on L1 minimization, I'd like to compare its performance to that of a more 'mainstream' cubic-spline, L2-norm minimizing spline. Preferably a smoothing spline. > >Does anyone know of such code existing anywhere? Or another smooth monotone alternative? > >Thanks in advance, > >Assaf Oron >Statistics Department >University of Washington > >______________________________________________ >[EMAIL PROTECTED] mailing list >https://www.stat.math.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > > > > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html