R help - Oct 2000 - strings

I am attempting to analyse some behaviour sequence data.  The input is an 
alphabetic string "ASDFGH ... ".  I wish to start at one end of the
string,
peel off each character, and convert to an integer to develop transition 
matrices etc. My blundering through the ref manual hasn't produced any
light.

Can this be done easily in R or should I pre-process?

I recollect an item similar to this on R-help around 6 mo ago but I can't 
find it in the archive. If there is such an article can someone please send 
me the date and I will track it down,

Richard Rowe

Richard Rowe
Senior Lecturer
Department of Zoology and Tropical Ecology, James Cook University
Townsville, Queensland 4811, Australia
fax (61)7 47 25 1570
phone (61)7 47 81 4851
e-mail: Richard.Rowe at jcu.edu.au
http://www.jcu.edu.au/school/tbiol/zoology/homepage.html

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>>>>> Richard Rowe writes:
> I am attempting to analyse some behaviour sequence data.  The input is
> an alphabetic string "ASDFGH ... ".  I wish to start at one end
of the
> string, peel off each character, and convert to an integer to develop
> transition matrices etc. My blundering through the ref manual hasn't
> produced any light.
> Can this be done easily in R or should I pre-process?
> I recollect an item similar to this on R-help around 6 mo ago but I
> can't find it in the archive. If there is such an article can someone
> please send me the date and I will track it down,
Richard,

Not sure what precisely you need ... if it is about converting a string
to a vector of characters, you could use

	R> x <- "ASDFGH"
	R> x
	[1] "ASDFGH"
	R> unlist(strsplit(x, NULL))
	[1] "A" "S" "D" "F" "G"
"H"

and proceed from there.

-k
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