Here we go: > buzz function(x) { y <- x + pi return(y) } > q() Save workspace image? [y/n/c]: python Save workspace image? [y/n/c]: y root@erinminfo [/home/erinminf/public_html]# python Python 2.7.5 (default, Sep 11 2013, 02:14:06) [GCC 4.1.2 20080704 (Red Hat 4.1.2-54)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import rpy2.robjects as R >>> R.r.buzz(3) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python2.7/site-packages/rpy2/robjects/__init__.py", line 213, in __getattribute__ raise orig_ae AttributeError: 'R' object has no attribute 'buzz' >>> R.r['buzz'](3) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python2.7/site-packages/rpy2/robjects/__init__.py", line 216, in __getitem__ res = _globalenv.get(item) LookupError: 'buzz' not found >>> root@erinminfo [/home/erinminf/public_html]#
On Wed, Oct 30, 2013 at 10:16 AM, Collin Lynch <coll...@cs.pitt.edu> wrote: > 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.hodg...@gmail.com > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > > > -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodg...@gmail.com [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.