Jim and Chuck,
Thanks a lot for your replies :)
I knew that there was a better way than the complex thing I was planning
to apply :p (with a lot of for/while/apply arghhh)
I also remembered to use factor when my brain woke up ;)
I did something like unclass(factor(c("ab","ab","bb","cat","cat","ab")))
which is also doing the right job.
Thx a lot for your fast replies.
Naira
Jim Lemon wrote:
Naira wrote:
Dear all,
I would like to know if there is an easy to transform a vector of
strings to
a vector of integers.
Ex: ("ab","ab","bb","cat","cat","ab") will be
(1, 1, 2, 3, 3, 1)
Hi Naira,
It's not all that hard...
newfactor<-as.factor(c("ab","ab","bb","cat","cat","ab"))
newfactor
[1] ab ab bb cat cat ab
Levels: ab bb cat
as.numeric(newfactor)
[1] 1 1 2 3 3 1
Jim
--
==================================================================
Naira Naouar
Tel:+32 (0)9 331 38 63
VIB Department of Plant Systems Biology, Ghent University
Technologiepark 927, 9052 Gent, BELGIUM
[EMAIL PROTECTED] http://www.psb.ugent.be
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