[R] pasting together 2 character arrays

[Jan van der Laan]

Jim,

It is not completely clear how you want to handle the items in Array2,  
but perhaps something like the following does what you needs (or at  
least points you in the right direction):

paste(
   rep(Array1, each=2),
   rep(Array2[1], times=8),
   rep(Array2[2:3], times=4),
   sep='.')


Regards,
Jan



Quoting "Maas James Dr (MED)" <J.Maas at uea.ac.uk>:

> If possible I would like to combine two different character arrays   
> in combinations
>
> Array1 <- c("height","weight","age","sex")
>
> Array2 <- c("trt0","trt1","trt2")
>
> I would like to combine these two character vectors to end up with such ...
>
> Array3
>
> "height.trt0.trt1"
> "height.trt0.trt2"
> "weight.trt0.trt1"
> "weight.trt0.trt2"
> "age.trt0.trt1"
> "age.trt0.trt2"
> "sex.trt0.trt1"
> "sex.trt0.trt2"
>
> I'm trying combinations of the "combinations" and "paste" functions,  
>  but no luck yet!
> Any suggestions about most efficient approach most welcome.
> Thanks
>
> Jim
>
> ===============================
> Dr. Jim Maas
> University of East Anglia
>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>