[R] To summary data
John Kane
jrkrideau at inbox.com
Mon May 14 16:08:40 CEST 2012
One way is to use the reshape2 package
===============================
library(reshape2)
dcast(xx, A ~ . , sum)
================================
John Kane
Kingston ON Canada
> -----Original Message-----
> From: mrzung46 at gmail.com
> Sent: Sun, 13 May 2012 22:14:02 -0700 (PDT)
> To: r-help at r-project.org
> Subject: [R] To summary data
>
> hi all,
>
> my data is here,
> --------------------------------------------------------------------------------------------------
> data
>
> clss number
> 1 A 1
> 2 B 2
> 3 C 3
> 4 A 4
> 5 B 5
> 6 C 6
> 7 A 7
> 8 B 8
> 9 C 9
> -----------------------------------------------------------------------------------------------------
> I want to this format
>
> clss number
> A 12
> B 15
> C 18
>
> is there a way to solve this problem?
>
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
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