Re: [R] merging 3 data sets at once

From: William Pepe <williampepe_at_hotmail.com>
Date: Wed, 04 Jun 2008 20:54:42 -0400

By the way, I used age and gender as examples. Plus, I've seen something very similar posted a while ago. If the problem I listed isn't an issue, then that code will work.  

Best,  

Bill

From: williampepe_at_hotmail.comTo: kjaja27_at_yahoo.com; r-help_at_r-project.orgSubject: RE: [R] merging 3 data sets at onceDate: Wed, 4 Jun 2008 20:50:34 -0400

I could suggest merge(merge(data1,data2), data3).  However, one problem I notice is that is assigns age=12 and gender=M to everyone with id=1, and so on. How are we to know that person with id=1 in data1 is the same person with id=1 in data2 and data3? Bill> Date: Wed, 4 Jun 2008 16:24:04 -0700> From: kjaja27@yahoo.com> To: r-help@r-project.org> Subject: [R] merging 3 data sets at once> > > Hi All,> > I am looking into merging 3 data sets I know how to do that by merging data1> with data2 and then merging the result with data 3. I was wondering if it> can be done all at once so I tried,> > M<-merge(data1,data2,data3, by=”ID”)> > It does not work!> Any ideas?> > > > -- > View this message in context: http://www.nabble.com/merging-3-data-sets-at-once-tp17658873p17658873.html> Sent from the R help mailing list archive at Nabble.com.> > ______________________________________________> 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.

Instantly invite friends from Facebook and other social networks to join you on Windows Live™ Messenger. Invite friends now!



Now you can invite friends from Facebook and other groups to join you on Wi https://www.invite2messenger.net/im/?source=TXT_EML_WLH_AddNow_Now

        [[alternative HTML version deleted]]



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 Jun 2008 - 00:59:52 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 Jun 2008 - 01:30:38 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