[R] appending and merging data frames

2013-02-07 Thread John Smith
I know that the basic approach to append or merge data frames is using the rbind and merge commands. However, if I understand things correctly, for both commands one needs to do quite some additional programming to get e.g. behavior as with the Stata append and morge commands or to achieve some

Re: [R] appending and merging data frames

2013-02-07 Thread Gerrit Eichner
Hello, John, as a start take a look at ?merge And to (maybe) get a bit overwhelmed at first sight use RSiteSearch( merge) Hth -- Gerrit On Thu, 7 Feb 2013, John Smith wrote: I know that the basic approach to append or merge data frames is using the rbind and merge commands. However,

Re: [R] appending and merging data frames

2013-02-07 Thread John Smith
Sent: Thu, 7 Feb 2013 16:57:13 +0100 (MET) To: johsmi9...@inbox.com Subject: Re: [R] appending and merging data frames Hello, John, as a start take a look at ?merge And to (maybe) get a bit overwhelmed at first sight use RSiteSearch( merge) Hth -- Gerrit On Thu, 7 Feb

Re: [R] appending and merging data frames

2013-02-07 Thread David Winsemius
...@math.uni-giessen.de Sent: Thu, 7 Feb 2013 16:57:13 +0100 (MET) To: johsmi9...@inbox.com Subject: Re: [R] appending and merging data frames Hello, John, as a start take a look at ?merge And to (maybe) get a bit overwhelmed at first sight use RSiteSearch( merge) Hth -- Gerrit On Thu, 7 Feb

Re: [R] appending and merging data frames

2013-02-07 Thread John Smith
- From: gerrit.eich...@math.uni-giessen.de Sent: Thu, 7 Feb 2013 16:57:13 +0100 (MET) To: johsmi9...@inbox.com Subject: Re: [R] appending and merging data frames Hello, John, as a start take a look at ?merge And to (maybe) get a bit overwhelmed at first sight use RSiteSearch

Re: [R] appending and merging data frames

2013-02-07 Thread William Dunlap
Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of John Smith Sent: Thursday, February 07, 2013 9:59 AM To: David Winsemius Cc: r-help@r-project.org Subject: Re: [R] appending and merging data frames I gave a small number of examples in my

Re: [R] appending and merging data frames

2013-02-07 Thread John Smith
Message- From: wdun...@tibco.com Sent: Thu, 7 Feb 2013 18:18:26 + To: johsmi9...@inbox.com, dwinsem...@comcast.net Subject: RE: [R] appending and merging data frames For merge, when merging dataset A with dataset B on some set of key variables, it is possible to specify if the join