[R] merging multiple columns from two dataframes

From: 1Rnwb <sbpurohit_at_gmail.com>
Date: Wed, 04 May 2011 10:53:55 -0700 (PDT)


Hello,

I have data in a dataframe with 139104 rows which is multiple of 96x1449. i have a phenotype file which contains the phenotype information for the 96 samples. the snp name is repeated 1449X96 samples. I haveto merge the two dataframes based on sid and sen. this is how my two dataframes look like

   dat<-data.frame(snpname=rep(letters[1:12],12),sid=rep(1:12,each=12),

         genotype=rep(c('aa','ab','bb'), 12))    pheno<-data.frame(sen=1:12,disease=rep(c('N','Y'),6), wellid=1:12)

I have to merge or add the disease column and 3 other columns to the data file. I am unable to use merge in R. I have searched google, i guess i am not hitting the correct terms to get the answer. I would appreciate any input on this issue. thanks
sharad

--
View this message in context: http://r.789695.n4.nabble.com/merging-multiple-columns-from-two-dataframes-tp3496341p3496341.html
Sent from the R help mailing list archive at Nabble.com.

______________________________________________
R-help_at_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.
Received on Thu 05 May 2011 - 06:25:02 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 05 May 2011 - 07:00:05 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive