HI all, I'm having some problems understanding how to access data inside a dataframe with rpy.
I have a dataframe called 'genedata' with columns like '$R', '$G' and '$Genes' and I want to be able to pass a specific column as a parameter to a new R function. I've had a look at the manual and I think I should be using something like selecteddata = r['$'](genedata, R) to pull out the specific data I want, but when I try this I get the following error rpy.RPy_TypeConversionException: cannot convert from type 'classobj' I've tried adding '.as_py(CLASS_CONVERSION)' to the end of this but it still fails. Ultimately what I want to do is give this data to another command. In R I'd say: datanorm<-normalizeBetweenArrays(genes$R, method="quantile") so actually I don't really want to convert the robj to a python object - I just want to know how I can reference the data within the dataframe. Any help would be greatly appreciated. -- Cheers, Nick Schurch Data Analysis Group (The Barton Group), School of Life Sciences, University of Dundee, Dow St, Dundee, DD1 5EH, Scotland, UK Tel: +44 1382 388707 Fax: +44 1382 345 893 ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ rpy-list mailing list rpy-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rpy-list
