I was about to post my question on Stackoverflow when I came across the question I wanted to ask but alas it is not answered. I am sure you know how to do this in data.table. I almost think I know but not quite. Can you please help
Moving sum over date range http://stackoverflow.com/q/21838935/168139?sem=2 Farrel Buchinsky Google Voice Tel: (412) 567-7870
_______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
