[R] vector and replace.

[Erin Hodgess]

Hi Yong!

How about this:

> gsr <- sample(c("g","r","y"),replace=T,15)
> gsr
 [1] "r" "g" "r" "g" "y" "y" "r" "r" "y" "g" "r" "y" "r" "r" "g"
> as.numeric(as.factor(gsr))
 [1] 2 1 2 1 3 3 2 2 3 1 2 3 2 2 1
> 

Hope this helps!

Sincerely,
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodgess at gator.uhd.edu


Date: Fri, 12 Mar 2004 19:37:18 -0600 (CST)
From: Yong Wang <wang at galton.uchicago.edu>
To: r-help-request at stat.math.ethz.ch
cc: r-help at stat.math.ethz.ch


hi,all
a quick question:  

a vector

v<-c(g,r,y,g,y,y,r)

needs to be

v<-c(1,2,3,1,3,3,2)

i.e., replace g,r,y as 1,2,3

how to do that, by the way, what key words I should use to search for such 
basic operation command?
thank you 

best

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