[Rpy] numpy arrays vs r data.frames, rpy/r dichotomy

2007-11-19 Thread Alexy Khrabrov
I still wonder what's the typical workflow of those folks who use rpy seriously. Do you access objects loaded in R or use numpy arrays? What's the typical dichotomy -- data and text in rpy, models and graphs in R? What rpy code is there to look at for large computational tasks, as exampl

[Rpy] NumPy Slicing without much Copying, Compact Pickling vs. .rda

2007-11-07 Thread Alexy Khrabrov
Greetings -- i want to read in a huge table and slice it, plotting pieces of it with R. The table t looks like, run ord unitwords new 1 1 14971009697 1 2 21121009538 1 3 20351004484 1 4 14921035463 In

[Rpy] indexing data.frames; status of r.py; etc.

2007-11-06 Thread Alexy Khrabrov
Greetings -- in R, one can index a data.frame as either a list of columns or as a matrix. In rpy, looks like it's a hash of lists. Moreover, despite the fact I made NumPy available before building rpy, the type of lists is 'list'. How do I check that NumPy arrays are used indeed? What a