[despammed] RE: [R] multidimensional function fitting

Huntsinger, Reid reid_huntsinger at merck.com
Fri Feb 28 23:47:33 CET 2003

You can use R objects, such as the return from gam, and the
predict.gam function, from C. See the R extensions manual.

Reid Huntsinger

-----Original Message-----
From: RenE J.V. Bertin [mailto:rjvbertin at despammed.com] 
Sent: Thursday, February 27, 2003 3:42 PM
To: Wiener, Matthew
Cc: r-help at stat.math.ethz.ch
Subject: Re: [despammed] RE: [R] multidimensional function fitting

On Thu, 27 Feb 2003 13:52:50 -0500, "Wiener, Matthew"
<matthew_wiener at merck.com> wrote regarding
"[despammed] RE: [R] multidimensional function fitting"

8-) Take a look at package mgcv.  Hope this helps.  --Matt

Thank you, I just did. It may indeed be what I'm looking for (I haven't
quite understood everything about it...), but:

1) The best fits I obtain with a formula like z~s(x,y) ; but this I cannot
possibly transport into the C programme where I need it! Maybe I wasn't
clear on this aspect?

2) It is very memory hungry, esp. when using the s() function: I have 192Mb
with 256Mb swap (not a lot, but reasonable I'd say), and I've never had to
kill R as often as when trying gam()...


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