[R] pmatch questions

Uwe Ligges ligges at statistik.uni-dortmund.de
Thu Oct 2 11:27:09 CEST 2003


Vito Muggeo wrote:

> Dear all,
> Below there are two, simple - I suppose, questions on using pmatch():
> 
> 
>>pmatch("xx", c("cc","xxa"))
> 
> [1] 2
> 
>>pmatch("a", c("cc","xxa"))
> 
> [1] NA
> 
>>pmatch("xx", c("cc","xxa","xxb"))
> 
> [1] NA
> 
> I would like that the second call returns also 2, and the third call returns
> c(2,3)
> is it possible?

You are looking for grep().

Uwe Ligges


> many thanks
> vito
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help




More information about the R-help mailing list