[R] String manipulation

[Jannis]

Dennis,

If I understand you correctly (your example does not point unambiguously 
to one unique solution...)
you could try:

dummy<- c('ac','ac','c','ac','ac','c')
dummy.rle<-rle(dummy)

result <- paste(dummy.rle$values,dummy.rle$lengths,collapse='_',sep='')

You may need to remove the '1' in dummy.rle$lengths to get exactly what 
you wanted.

HTH
Jannis

On 03/09/2011 12:33 AM, Denis Kazakiewicz wrote:
> Dear [R] people
> Could you please help with following
>
>
> How to convert a vector
>
> 'ac','ac','c','ac','ac','c'
>
> into a single string
> 'ac2_c_ac2_c'
>
>
> Thank you in advance
>
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