[Rd] Computer algebra in R - would that be an idea??
r.hankin at noc.soton.ac.uk
Wed Jul 13 09:04:08 CEST 2005
another option would be David Gillespie's "calc", which is written
in emacs lisp.
This is a stable system with (AFAICS) as large user base.
Unfortunately, it doesn't seem to be actively developed, as the last
stable version (2.02f)
appears to be 1996. I don't know if this would be a contraindication.
On 13 Jul 2005, at 02:36, Gabor Grothendieck wrote:
> I don't know which free system is best. I have mainly used Yacas
> but my needs to date have been pretty minimal so I suspect
> any of them would have worked.
> Eric's COM solution, once I have it figured out, will likely get me
> to the next step on Windows. I did some googling around and
> found this:
> which is a python interface to Yacas which may give some ideas
> on how to interface it to R.
> On 7/12/05, Søren Højsgaard <Soren.Hojsgaard at agrsci.dk> wrote:
>> Personally, I like Maxima better than Yacas, but in both cases the
>> solution (at least a minimal one) should be doable: A small
>> program which pipes R commands into a terminal running Maxima/
>> Yacas and taking the output back into R. I am not much into the
>> technical details, but isn't that what can be done with the COM
>> automatation server on Windows?? (I don't know what the equivalent
>> would be on unix?).
>> Best regards
>> Fra: Simon Blomberg [mailto:Simon.Blomberg at anu.edu.au]
>> Sendt: on 13-07-2005 01:52
>> Til: Duncan Murdoch; Gabor Grothendieck
>> Cc: Søren Højsgaard; r-devel at stat.math.ethz.ch
>> Emne: Re: [Rd] Computer algebra in R - would that be an idea??
>> I would use such a symbolic math package for R. I have dreamt of an
>> open-source solution with functionality similar to mathStatica.
>> http://www.mathstatica.com/ Is yacas the best system to consider?
>> about Maxima http://maxima.sourceforge.net/, which is also GPL,
>> or maybe
>> Axiom http://savannah.nongnu.org/projects/axiom, which has a
>> modified BSD
>> At 01:25 AM 13/07/2005, Duncan Murdoch wrote:
>>> On 7/12/2005 10:57 AM, Gabor Grothendieck wrote:
>>>> On 7/12/05, Søren Højsgaard <Soren.Hojsgaard at agrsci.dk> wrote:
>>>>>> From time to time people request symbolic computations beyond
>>> D() and deriv() etc can provide. A brief look at the internet
>>> shows that
>>> there are many more or less developed computer algebra packages
>>> available. Therefore, I wondered if it would be an idea to try to
>>> 'integrate' one of these packages in R, which I guess can be done
>>> in more
>>> or less elegant ways... I do not know any of the computer algebra
>>> around the World, but perhaps some other people from the R-
>>> community do
>>> and would be able to/interested in establishing such a connection...
>>>> Coincidentally I asked the yacas developer about this just
>>> It sounds like developing an R package to act as a wrapper would
>>> be the
>>> best approach. I didn't see documentation for their API (the
>>> exports of
>>> their DLL), but I didn't spend long looking.
>>> Duncan Murdoch
>>> R-devel at r-project.org mailing list
>> Simon Blomberg, B.Sc.(Hons.), Ph.D, M.App.Stat.
>> Centre for Resource and Environmental Studies
>> The Australian National University
>> Canberra ACT 0200
>> T: +61 2 6125 7800 email: Simon.Blomberg_at_anu.edu.au
>> F: +61 2 6125 0757
>> CRICOS Provider # 00120C
> R-devel at r-project.org mailing list
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