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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