On Thu, Sep 23, 2010 at 12:18 PM, rasanpreet kaur suri <rasanpreet.k...@gmail.com> wrote: > hi guys..thx for help > i have to perform a calculation > P-B/T-B > where P is the values in pdf and B is the values in bdf and T in tdf
You have 69 rows in your pdf data.frame, and something like 20 rows in bdf and tdf, so my original question stands: >>> What column do you want to use in your data.frame to merge against? >>> I'm guessing SampleID(?), but then again, these aren't unique in your >>> `pdf` data.frame. For instance, what would the row for "SDM001" look >>> like in your merged data.frame? You know what I mean? How do you intend to group the rows across your pdf,bdf,tdf to do this calculation? -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact ______________________________________________ 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.
