I would like to try to use data.table awesomeness on the command line. The usual use case is that you have a file and you would like to quickly create a summarized other file. Sometimes you wouldn't need to start R
Something like (I'm just guessing) $) DTCMD myfile.csv "[1:5, list(a,b,c=sum(d),e=cumsum(f)), by=grp][,test:='hello']" > newFile.csv Would someone have an idea about this ? -- View this message in context: http://r.789695.n4.nabble.com/data-table-on-the-command-line-tp4675755.html Sent from the datatable-help mailing list archive at Nabble.com. _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
