Hi All, Kindly see the below code I have used: maxorder<-ddply(test, ~ ORIGIN,summarize,Weight=sum(CHG_WT))
Here I have written the code to summarize values based on origin and total weight however I am getting below error: Error: ‘sum’ not meaningful for factors Please advice. I need CHG_WT total for each state in the Origin column. -- View this message in context: http://r.789695.n4.nabble.com/Cannot-Sum-with-DDPLY-tp4708338.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.