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2012 Aug 02
3
text search in r
I am trying to count the number of times that the characters in a string change For example- new=c(AAAABBBBBABBBABB) I want to find the number of times that B changes to A and the number of times that A changes to B. I tried the grep command but I only figured out the positions of when B changes to A when I only need the number of times it occurs. -- View this message in context: