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In data martedì 26 aprile 2011 15:48:38, 亀田馬志 ha scritto:
Which version of rpy2 are you using?
> robjects.r('library(RSQLite)')
> drv = 'dbDriver("SQLite")'
You could also (with 2.1.x or newer) do
from rpy2.robjects.packages import importr
rsqlite = importr("RSQLite")
drv = rsqlite.dbDriver("SQLite")
(assuming that "dbDriver" is provided by the library itself and not another
package, if not you have to "importr" the relevant package)
> Question here. I want to give a column data of the data_table to an R
> function, such as t.test. But I don't know how.
You use rx and rx2 accessors (on 2.1.x or newer). The behavior you want is
done with the rx2 accessor:
mycol = mydataf.rx2("colname")
> robjects.r(some_r_function('%s$specified_column_name" % data_table)) #
> This is no good. Doesn't work properly
You should use "importr" and call the functions directly from Python. See the
rpy2 documentation for more details.
Hope this helps.
--
Luca Beltrame, Ph.D. - Translational Genomics Unit
Oncology Department, Mario Negri Institute
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