Hello! I am new in R and have a task. I have a massive, for example: region price 1 100 2 100 1 150 3 200 2 100 1 150 3 150 and so on.
I need to make 2 tables, that describes in descending order: 1) quantity of rows for each region, 2) sum of prices in each region -- View this message in context: http://r.789695.n4.nabble.com/Sumif-tp4727959.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
