Martin Maechler <maechler <at> stat.math.ethz.ch> writes: [snip]
> but definitely *no* need to use a function from an extra CRAN > package .. as someone else ``erronously'' suggested. > > Note that > spline() and splinefun() > together with > approx() and approxfun() > are among the several hundred functions that were already > part of "pre-alpha" R, i.e., before R had a version number or *any* > packages ... > and yes, the README then started with the two lines > > | R Source Code (Tue Jun 20 14:33:47 NZST 1995) > | Copyright 1993, 1994, 1995 by Robert Gentleman and Ross Ihaka > > and it would be *really* *really* great > if people did not add stuff to their packages that has > been part of R for longer than they have even heard of R. > > Martin Maechler, ETH Zurich To be fair, the 'fields' package has a pretty long history too -- I think it may have been ported from an S-PLUS 'package' (or whatever the correct terminology is) that existed quite a while ago. I think it was the FUNFITS module. From http://lib.stat.cmu.edu/S/: funfits FUNFITS is a comprehensive S-Plus module for fitting functions and nonlinear time series, including multivariate splines, Kriging and neural networks. Contributed by Doug Nychka (nyc...@ucar.edu). [25/Apr/96] [24/Mar/97][24/Sep/99] (3 kbytes). The actual compressed tar file is available as funfits23.tar.gz in the S collection. Access this file via FTP, or the WWW, but not e-mail. (596k). Older version avaulable at funfits.tar.Z A quick look at funfits.tar.Z suggests that 'splint' existed in that version, in 1996 -- so respectably old. ______________________________________________ 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.