Hi, I have a similar query (how to compare 2 datasets), but my dataset is a bit different. I want to compare each data in dataset 1 to data in dataset 2 and get the data which is common to both datasets.
For example; I have a a file (named mysample). V1 V2 YBL064C YBR067C YBL064C YBR204C YBL064C YDR368W YBL064C YJL067W YBL064C YPR160W YBR053C YGL089C YBR053C YHR113W YBR053C YNL328C And I have another file (myref) as follows V1 V2 YBL064C YBR067C YBL064C YBR204C YBL064C YDR368W When I try to intersect the two files, I received NULL data frames. > intersect(myref,mysample) NULL data frame with 0 rows What I am hoping to get out of intersect for the above files are YBL064C YBR067C YBL064C YBR204C YBL064C YDR368W Are there any R functions that can achieve what I want to do? Or should I merge the data which is currently in 2 columns into single column and use intersect again? Thanks for any feedbacks! [[alternative HTML version deleted]] ______________________________________________ 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.