[R] count occurrence and distance of characters in string
Charles C. Berry
cberry at tajo.ucsd.edu
Fri Nov 5 00:28:43 CET 2010
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"
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
> R-help at r-project.org mailing list
> 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
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