[Rd] Re: [R] R - S compatibility table (fwd)
bolker at zoo.ufl.edu
Mon Oct 20 17:45:02 MEST 2003
I appreciate Brian and Martin's answers -- and I certainly don't spend
as much time & energy maintaining and answering questions about R as they
do -- *but* it does seem to me that it would make a number of new
(switching) user's lives easier if there were a succinct list of these
differences, with a disclaimer ... I would be willing to maintain such a
list, but since I don't ever use S-PLUS it would be a little bit hard ...
gives a few differences.
620B Bartram Hall bolker at zoo.ufl.edu
Zoology Department, University of Florida http://www.zoo.ufl.edu/bolker
Box 118525 (ph) 352-392-5697
Gainesville, FL 32611-8525 (fax) 352-392-3704
---------- Forwarded message ----------
Date: Mon, 20 Oct 2003 16:13:18 +0200
From: Martin Maechler <maechler at stat.math.ethz.ch>
To: Purvis Bedenbaugh <purvis at mbi.ufl.edu>
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] R - S compatibility table
>>>>> "Purvis" == Purvis Bedenbaugh <purvis at mbi.ufl.edu>
>>>>> on Mon, 20 Oct 2003 08:03:13 -0400 writes:
Purvis> Hello all - I've just recently been exploring R for
Purvis> the first time. After noticing a few things that
Purvis> have changed from S to R, I started looking for an
Purvis> R-S compatibility table but didn't find it. Is such
Purvis> a table out there ? Where ?
Purvis> Thanks much,
Purvis> Purvis Bedenbaugh purvis at mbi.ufl.edu
Purvis> 'stdev' is now 'sd'
"now" is good. sd() has been in R for about 7 years, whereas
stdev() was introduced into S+ only for version 6.x.. in about 2000.
Purvis> - is it exactly the same computation ?
no, it isn't (in more than one sense)...
Purvis> couldn't find a built-in for error.bar()
"built-in" is not a good notion in any version of S, but much
less in R : R comes with 28 (standard + recommended) packages of
which only a few are attached by default, and CRAN has over 200
contributed packages; Bioconductor has another several dozen,
and there are more outside the official repositories above.
Several of the CRAN packages have error.bar incantations..
Purvis> syntax that is an error in R: param(thisframe,"b") <- value
It's not a syntax error; just, there's no "param<-" function
in the currently attached R packages (and not in other R
packages I seem to have around)...
Prof. Brian Ripley has given you more hints already.
Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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