[R] rpy2 and user defined functions from R

[Collin Lynch]

Erin, one question, can you access the defined functions by key?

In lieu of:
> x = R.r.buzz(3)

Can you do:
  x = R.r['buzz'](3)


Alternatively if you need only one or two custom functions have you
considered just defining them via python as in:

PStr = """
function(LM) {
  S <- summary(LM);
  print(S$fstatistic);
  F <- S$fstatistic;
  P <- pf(F[1], F[2], F[3], lower=FALSE);
  return(P);
}
"""
r_LMPValFunc = robjects.r(PStr)

	Best,
	Collin.


On Tue, 29 Oct 2013, Erin Hodgess wrote:

> Hello again!
>
> I'm using python with a module rpy2 to call functions from R.
>
> It works fine on built in R functions like rnorm.
>
> However, I would like to access user-defined functions as well.  For those
> of you who use this, I have:
>
> import rpy2.robjects as R
> R object as no attribute buzz
>
> (user defined function of buzz)
>
> This is on a Centos 5 machine with R-3.0.2 and python of 2.7.5.
>
> Thanks for any help.
> Sincerely,
> Erin
>
>
>
> --
> Erin Hodgess
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: erinm.hodgess at gmail.com
>
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