Hi,
I've search on
http://rpy.sourceforge.net/
and use R with commands inside a Sage script as following:
from sage.all import *
def iunif(a,b):
return Integer(fround(r.runif(1,RDF(a),RDF(b)),0))
def runif(a,b,prec):
return RDF(fround(r.runif(1,RDF(a),RDF(b)),prec))
def rbernoulli():
return r.rbinom(1, 1, 0.5)._sage_()
>From Sage I've used RDF because R needs "reals" and not symbolic
expressions and used _sage_() to convert from R objects to Sage
objects.
I have problems with:
r.set_seed => accept only one argument
r graphics => could not got them to appear in Sage environment.
I'm no expert in Sage so I welcome any suggestion to improve the above
commands.
Pedro Cruz
On Jan 29, 4:02 am, Gokhan Sever <gokhanse...@gmail.com> wrote:
> On Jan 28, 8:00 pm, Ondrej Certik <ond...@certik.cz> wrote:
>
> > Hi,
>
> > are there some examples how to use R from Sage?
>
> > I tried to search here:
>
> >http://www.sagemath.org/help.html
>
> >http://www.sagemath.org/doc/reference/
>
> > I also tried to search sage-devel, for "R" and "R statistics" and "R
> > statistical", but didn't find anything. So the next time, I'll at
> > least find my own message, and hopefully some hints. :)
>
> > Ondrej
>
> Hi Ondrej,
>
> A couple sources I can point out:
>
> http://sage.math.washington.edu/home/mhansen/sage-epydoc/sage.interfa...
> (Interestingly this doesn't show up on the main reference
> --http://www.sagemath.org/doc/reference/interfaces.html)
> Might need to let SAGE guys know about this, on sage-devel or open a
> documentation enhancement etc. :)
>
> http://groups.google.com/group/sage-support/browse_thread/thread/53d6...
>
> Also sage-notebook has an "r" mode you can directly enter "R"
> commands.
>
> y <- c(1, 2, 3) instead of y = r("c(1, 2, 3)")
>
> I know it is tricky to search terms like "R" or "C". Python is very
> easy to find although at time it interferes with the snake and
> monthy :)
On Jan 29, 4:02 am, Gokhan Sever <gokhanse...@gmail.com> wrote:
> On Jan 28, 8:00 pm, Ondrej Certik <ond...@certik.cz> wrote:
>
> > Hi,
>
> > are there some examples how to use R from Sage?
>
> > I tried to search here:
>
> >http://www.sagemath.org/help.html
>
> >http://www.sagemath.org/doc/reference/
>
> > I also tried to search sage-devel, for "R" and "R statistics" and "R
> > statistical", but didn't find anything. So the next time, I'll at
> > least find my own message, and hopefully some hints. :)
>
> > Ondrej
>
> Hi Ondrej,
>
> A couple sources I can point out:
>
> http://sage.math.washington.edu/home/mhansen/sage-epydoc/sage.interfa...
> (Interestingly this doesn't show up on the main reference
> --http://www.sagemath.org/doc/reference/interfaces.html)
> Might need to let SAGE guys know about this, on sage-devel or open a
> documentation enhancement etc. :)
>
> http://groups.google.com/group/sage-support/browse_thread/thread/53d6...
>
> Also sage-notebook has an "r" mode you can directly enter "R"
> commands.
>
> y <- c(1, 2, 3) instead of y = r("c(1, 2, 3)")
>
> I know it is tricky to search terms like "R" or "C". Python is very
> easy to find although at time it interferes with the snake and
> monthy :)
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