Dear Rcpp-Experts, in Rcpp I want to quickly identify matching rows in a data.frame.
In R I would do the following: matching.rows <- my.data.frame[ which( my.data.frame$column.of.interest == 'value_of_interest' ), ] How to do something similar in Rcpp? If I am not mistaken R data.frames and matrices do have some implicit index, thta allows very fast identification of matching positions, don't they? If it helps I could do that on an Rcpp::Matrix instead of a DataFrame… Help will be much appreciated. Have a pleasant weekend, and Cheers! _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
