rJython (version 0.0-4)

jython.assign: Assign and get variables in Python from R

Description

Functions that assign and get Python variables from R.

Usage

jython.assign( rJython, var.name, value ) jython.get( rJython, py.var )

Arguments

rJython

rJython interpreter as instantiated by function rJython

var.name

a character string containing a valid python variable name

value

an R object whose equivalent wants to be assigned to the variable in python

py.var

Name of a python variable

Value

Function jython.get returns a R version of the Python variable py.var.

Details

These functions can assign values to variables in Python as well as get their values back to R. Objects are serialized as json strings while being transferred between R and Python.

References

http://code.google.com/p/simplejson

Examples

rJython <- rJython()

a <- 1:4
jython.assign( rJython, "a", a )
jython.exec( rJython, "b = len( a )" )
jython.get( rJython, "b" )

rJython$exec( "import math" )
jython.get( rJython, "math.pi" )