the constructor for DataFrame in rpy2 doesn't expose the parameter "stringsAsFactors"
It suggested to me on stack overflow to open an issue about it.
The constructor for DataFrame in rpy2 doesn't expose the parameter
available for the R function data.frame.
The trick suggested by lgautier is to do the following in Python:
from rpy2.robjects import pandas2ri from rpy2.robjects.packages import importr base = importr('base') pandas2ri.activate() ... # CONVERT PANDAS DF TO R DF rdf = pandas2ri.py2ri(pydf) # FIND COLUMN INDEX OF EACH FACTOR IN DF factors = [i for i,col in enumerate(rdf) if col.rclass == 'factor'] # CONVERT COLS ITERATIVELY for f in factors: rdf[f] = base.as_character(rdf[f])
or I found that the following is working in R:
i <- sapply(df, is.factor) df[i] <- lapply(df[i], as.character)
It will be nice instead to pass the argument
to the converter.
Thanks a lot Cheers Fabien