Dear R cracks, 
  I need to process data in R which consist of strings like
   
  AAABAVVABNN
  ABVVNNAA
   
  What I would like to know is whether there are commands that deliver
  -the length of a string
  -one specified character of a string (e.g. the 3rd letter)
  -that allow to concatenate characters to a string again
   
  Can anyone help me?
   
  Thanks a lot!
    Florian Menzel

 		
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