[R] frequency of items

Jim Lemon drjimlemon at gmail.com
Wed Jul 20 11:18:37 CEST 2016


Hi sri,
Maybe something like this?

has_values<-function(x,values) {
 if(is.list(x)) {
  return(sum(unlist(lapply(svlist,
   function(x,values) return(all(values %in% x)),c(11,12)))))
 }
}

svlist<-list(a=c(11,15,12,25),
 b=c(11,12),
 c=c(15,25),
 d=c(134,45,56),
 e=46,
 f=c(45,56),
 g=c(15,12),
 h=c(66,45,56,24,14,11,25,12,134))

has_values(svlist,c(11,12))

Jim

On Tue, Jul 19, 2016 at 8:59 PM, sri vathsan <srivibish at gmail.com> wrote:
> Hi,
>
> I have a data frame like below.
> 11,15,12,25
> 11,12
> 15,25
> 134,45,56
> 46
> 45,56
> 15,12
> 66,45,56,24,14,11,25,12,134
>
> I want to identify the frequency of pairs/triplets or higher that occurs in
> the data. Say for example, in above data the occurrence of pairs looks like
> below
>
> item     No of occurrence
> 11,12         3
> 11,25         2
> 15,12         2
> 15,25         2
> .
> .
> 45,56          3
> 134,45,56    2
>
>  ....and so on
>
> I am trying to write R code for the above and I am finding difficulty to
> approach this. Looking forward some help.
>
> Thanks!
>
> --
>
> Regards,
> Srivathsan.K
>
>         [[alternative HTML version deleted]]
>
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