I am not a private (or free!) consultant. Post to the r-help if your question concerns R.
-- Bert Bert Gunter On Sat, Apr 29, 2017 at 8:51 AM, abo dalash <abo_d...@hotmail.com> wrote: > Hi dear Bert > > > I'm trying to identify number of rows containing 2 specific values. > > I tried : which(mydata == 566,235), but this returns logical values for all > rows and any T in a certain row indicates the existence of one of these > values but what I need to know is only number of rows in my data set with > these 2 particular values considering these two values > > as one pair per row. For example : > > > 1 123 566 235 > > 2 443 54 566 > > 3 566 44 235 > > > here number of rows with the values 566&235 is 2 which are > > rows 1 & 3. Row 2 has only 566 so it should not be included in > > our calculation. > > > I also have a large matrix and wanted to convert it into a table so I can > > easily identify the combination with higher frequencies. > > > The matrix looks like this: > > > x y z > > x 0 5 67 > > y na 0 23 > > z na na 0 > > > and I would like to convert this into a table arranged with > > higher values first like this : > > x z 67 > > y z 23 > > x y 5 > > x x 0 > > y y 0 > > z z 0 > > y x na > > z x na > > z y na > > > Is there a simple function to perform this conversion with some explanation > about the Syntax if you don't mind? > > > Regards ______________________________________________ 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.
