[Rcpp-devel] retrieve the column names of Rcpp::DataFrame

[Chaomei Lo]

I have a R data frame pass to the Rcpp function, for example in below-

void myDataFrame(Rcpp::DataFrame df) {
....
}

I would need to know the column names first before I retrieve the data but
df.colnames() does not work but the df.length() and df.nrows() work.

Thanks for help !
Chaomei
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