Odp: for loop with global variables
Hi r-help-bounces at r-project.org napsal dne 28.04.2011 16:16:16:
ivan <i.petzev at gmail.com>
Odeslal: r-help-bounces at r-project.org
28.04.2011 16:16
Komu
r-help at r-project.org
Kopie
P?edm?t
[R] for loop with global variables
Hi,
is there a possibility to use global variables in a for loop. More
specifically, I want to do the following:
output.1<-rbind("a","b")
output.2<-rbind("c","d")
output.3<-rbind("e","f")
.
.
.
output.n<-rbind(...,...)
next I want to create a data frame with two columns:
Outputs
Values output.1 "a","b" output.2 "c","d" output.3 "e","f" .
.
output.n ?,?
My problem is that I do not how to define a loop over global variables.
Anybody an idea?
Don't do that. As Jim suggested use list inside a loop.
#declare a list
lll<-vector("list",3)
#do your loop
for(i in 1:3) lll[[i]] <- letters[i]
lll
[[1]]
[1] "a"
[[2]]
[1] "b"
[[3]]
[1] "c"
But I feel that you could maybe achieve desired result without loop in
more Rish way. If what you want to do is reasonable and frequent I believe
somebody already made a function which does what you want.
Regards
Petr
Thanks. [[alternative HTML version deleted]]
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