Thanks Ista, Your suggestion worked like a charm.
Mark, thanks to you too. But don't worry about the data I sent to you. Good night everyone, Jim Ista Zahn wrote:
Hi Jim, out_df <- my_df[ my_df$STREP %in% my_num, c("COUNTY", "FIPS", "STSEN", "STREP", "PREC")] should do the trick. See ?match for details. On Thu, Oct 29, 2009 at 1:53 AM, Jim Burke <j.bu...@earthlink.net> wrote:I have searched help topics but don't know exactly what to search for. Need to use my_num to find any matching STREPs in my_df my_num <- c("101","102","103","104","105","107","108","112","113","114","115") ## "my_df" has 8,000 different STREPS in it. ## I have a statement where I can select ONE item from data frame "my_df" out_df <- my_df[ my_df$STREP=="101", c("COUNTY", "FIPS", "STSEN", "STREP", "PREC")] ## A comparative SQL command ## SELECT ## COUNTY, FIPS, STSEN, STREP, PREC ## FROM my_df ## WHERE my_df.STREP IN("101","102","103","104","105","107","108","112","113","114","115") ## ORDER BY STREP; Thanks for any help, Jim ______________________________________________ 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.
______________________________________________ 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.
