[R] count occurrence and distance of characters in string

[Charles C. Berry]

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
>
> ______________________________________________
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> 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