Hi Andrew (cc: sage-devel), I just tried out rpy2 (a superfast C-level Python<-->R interface) and the user interface is amazingly ridiculously painfully to actually interactively use. Evidently rpy was removed from sage and replaced by rpy2 sometime this summer. Anyway, with rpy we had:
sage: import rpy; rpy.sd([1..100]) # no longer works in sage to compute the standard deviation of a list. With rpy2 the same thing becomes: sage: import rpy2.robjects # using sage-4.2.1 sage: rpy2.robjects.r['sd'](rpy2.robjects.IntVector([1..100])).r_repr() '29.011491975882' Just look at that carefully. Ouch. Anyway, any thoughts? I wonder if it would be easy to provide a lightweight wrapper around rpy2 that would provide a much more sensible interface. At least the docs at http://rpy.sourceforge.net/rpy2/doc/html/index.html are pretty good. William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send an email to [email protected] To unsubscribe from this group, send an email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
