Hi
I am little bit lost in your logic. Why triple in your fourth line is one. I
expected it will be four?
Petr
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Knut
> Krueger
> Sent: Friday, June 26, 2015 10:10 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] counting similar strings in data.frame
>
> Dear Members,
>
> is there a better solution to count the amounts of occurrence in a row
> with string data than with loops to get the count data.frame?
>
> test
=data.frame("first"=c("seven","two","five","four"),
>
"second"=c("three","one","three","one"),
>
"third"=c("four","two","three","four"),
>
"fourth"=c("four","one","one","four"))
>
>
>
> count
=data.frame("double1"=c("four","two","three","NA"),
>
"double2"=c("NA","one","NA","NA"),
>
"triple"=c("NA","NA","NA","one"))
>
>
> double1: first double occurrence in row (NA if triple available)
> double2: second double occurrence in row (NA if triple available or if
> there is only one double)
> triple: triple occurrence in row (NA if a double available)
>
>
> Kind regards Knut
>
> ______________________________________________
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> and provide commented, minimal, self-contained, reproducible code.
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