On 08/05/10 06:26, John Owens wrote: > Using the new function "from_csvfile" on a DataFrame is terrific. I'd like to > extend this in two ways: > > 1) I have three csv files, let's say a.csv, b.csv, c.csv. I'd like to import > all > three and put them into one DataFrame. How can I do this? They all have the > same > columns.
http://rpy.sourceforge.net/rpy2/doc-2.1/html/robjects.html#rpy2.robjects.vectors.DataFrame.rbind > 2) When I do this, I'd also like to add a new column that's the name of the > source file. So for instance, I'd like an additional "source" column, and the > lines from a.csv would be labeled 'a' in that column and so on. http://rpy.sourceforge.net/rpy2/doc-2.1/html/robjects.html#rpy2.robjects.vectors.DataFrame.cbind Not much else in the documentation, so you'll have to look at the unit tests for a code example: http://www.bitbucket.org/lgautier/rpy2/src/tip/rpy/robjects/tests/testDataFrame.py#cl-104 L. > Would be delighted if I could figure out either or both of these. Thanks! > > JDO > > > ------------------------------------------------------------------------------ > > _______________________________________________ > rpy-list mailing list > rpy-list@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/rpy-list ------------------------------------------------------------------------------ _______________________________________________ rpy-list mailing list rpy-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rpy-list
