[R] Finding values in one column and

[John Kane]

Have a look at ?merge

John Kane
Kingston ON Canada


> -----Original Message-----
> From: steven.ranney at gmail.com
> Sent: Tue, 27 Nov 2012 15:17:58 -0700
> To: r-help at r-project.org
> Subject: [R] Finding values in one column and
> 
> All -
> 
> I have a data frame
> 
> data.a
> ID	valueA	valueB
> 6	12	12
> 17	15	14
> 58	18	16
> 98	11	12
> 73	19	20
> 84	19	14
> 58	20	14
> 24	11	12
> 81	15	16
> 21	15	14
> 62	14	12
> 67	13	14
> 78	13	17
> 35	10	13
> 13	11	15
> 14	17	18
> 85	16	15
> 35	13	9
> 18	15	16
> 
> and a data frame
> 
> data.b
> ID	valueA	valueB
> 6
> 84
> 21
> 78
> 14
> 
> I'd like to have R find the data.b$ID in data.a$ID and insert the
> corresponding data.a$valueA and data.a$valueB into the appropriate
> columns in data.b.
> 
> How can I do this?
> 
> Thanks for you help.
> 
> SR
> Steven H. Ranney
> 
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