Hi, How do I do something like this without using sqldf?
a <- sqldf("SELECT COUNT(*) FROM b WHERE c = 'd'") or e <- sqldf("SELECT f, COUNT(*) FROM b GROUP BY f ORDER BY f") greetings, el ______________________________________________ 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.