Hi all, I have a huge dataset(5000k observations), which contains the daily sales for each company. If I want to find out the a company with unique company id number, which function I should use that is more efficient, match or "=="? For example,
use<-dataset[!is.na(match(dataset$companyID, 12345)),] or use<-dataset[dataset$companyID==12345,] Thank you very much. -- View this message in context: http://n4.nabble.com/match-function-or-tp1754505p1754505.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list 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.
