Marianne,
The function substring2 from the Hmisc packages works nicely for me to
do this (without explicit gsub, though):
x<- c("one","two")
y<- paste(rep(x,2),"blah")
y
[1] "one blah" "two blah" "one blah" "two blah"
substring2(y,x)<- "something else"
y
[1] "something else blah" "something else blah" "something else blah" "something
else blah"
Christian
On 02/22/2010 10:25 AM, Marianne Promberger wrote:
Dear list,
I have two vectors:
x<- c("one","two")
y<- paste(rep(x,2),"blah")
I want to replace all occurrences of each element of x in y with
something else, so that y looks like this:
y
[1] "something else blah" "something else blah" "something else blah"
[4] "something else blah"
I can do this using a loop:
for ( i in 1:length(x) ) {
y<- gsub(x[i],"something else",y)
}
Surely, there must be a less kludgy way?
I tried looking at the different apply()s but am not getting anywhere,
partly because I lack the mental flexibility to combine the fact that
I am applying gsub() to y but now want to apply that to x ... erm. :/
Marianne
--
Christian Raschke
Department of Economics
and
ISDS Research Lab (HSRG)
Louisiana State University
Patrick Taylor Hall, Rm 2128
Baton Rouge, LA 70803
(225)226-0017
cras...@lsu.edu
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