count occurrence and distance of characters in string
Hey, thanks for the answer, actually I already typed an example but deleted it since I thought it's superfluous. regards --------- string <- "kjokllokkoadddo" # f1(string, "o") should return that "o" was found 4 times # f2(string, "o") should return that the distances between the "o"'s found is 3 , 2, 4 ---------
On 11/05/2010 12:28 AM, Charles C. Berry wrote:
On Thu, 4 Nov 2010, Immanuel wrote:
Hello all, I want to know how often one character occurs in a given string and the distance from between every two occurences. (distance = other characters between them).
You should provide "commented, minimal, self-contained, reproducible code" as asked. And especially for a question like this one with many simple answers that RespondeRs will shower you with if only you give them a starting point. Use tapply, strsplit, seq, nchar, unlist, diff, "-", and table for one way. Chuck
thanks
______________________________________________ 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.
Charles C. Berry Dept of Family/Preventive Medicine cberry at tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901