On 22-04-2012, at 13:03, Yellow wrote: > I figured out something new that I would like to see if I can do this more > easy with R then Excel. > > I have these huge files with data. > For example: > > DataFile.csv > ID Name log2 > 1 Fantasy 5.651 > 2 New 7.60518 > 3 Finding 8.9532 > 4 Looeka -0.248652 > 5 Vani 0.3548 > > With like header1: ID, header 2: Name, header 3: log2 > > Now I need to get the $ID out who have a &log2 value higher then 7. > > I know ho to grab the $log2 values with 7+ numbers. > > Log2HigherSeven = DataFile$log2 [ DataFile$log2 >= 7] > How about
DataFile[DataFile$log2 >= 7, c("ID","Log2")] to get a dataframe with two columns ID and log2. Berend ______________________________________________ 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.