[R] Counting occurrences of a set of values
jfox at mcmaster.ca
Thu Sep 10 15:29:49 CEST 2015
How about this?
> table(apply(Data, 1, paste, collapse=","))
1,1,1 1,2,1 1,3,2
1 2 1
I hope this helps,
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Thomas
> Sent: September 10, 2015 9:11 AM
> To: r-help at r-project.org
> Subject: [R] Counting occurrences of a set of values
> Can anyone suggest a way of counting how frequently sets of values occurs in a
> data frame? Like table() only with sets.
> So for a dataset:
> V1, V2, V3
> 1, 2, 1
> 1, 3, 2
> 1, 2, 1
> 1, 1, 1
> The output would be something like:
> 1,2,1: 2
> 1,3,2: 1
> 1,1,1: 1
> Thank you,
> Thomas Chesney
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