how to iterate two elements each through for loop?
e.g. x<-c(1,2,4,7,34,6)
y<-c(3,5,6,9,34,7)
for(z in x){
print(paste(z,y)) }
i want both element of vector iterate serially with same position
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iterating through for loop
3 messages · sagarnikam123, PIKAL Petr, William Dunlap
Hi
[R] iterating through for loop
how to iterate two elements each through for loop?
e.g. x<-c(1,2,4,7,34,6)
y<-c(3,5,6,9,34,7)
for(z in x){
print(paste(z,y)) }
i want both element of vector iterate serially with same position
Not sure what the result shall be. but paste(x,y) and do.call(paste, lapply(expand.grid(x,y), paste)) is what comes to my mind. If you want something else please follow rules suggested in posting guide. Regards Petr
-- View this message in context: http://r.789695.n4.nabble.com/iterating- through-for-loop-tp4354101p4354101.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Use a common subscript to go through two or more objects in
parallel:
> x<-c(1,2,4,7,34,6)
> y<-c(3,5,6,9,34,7)
> stopifnot(length(x)==length(y))
> for(i in seq_along(x)) {
+ print(paste(x[i], y[i]))
+ }
[1] "1 3"
[1] "2 5"
[1] "4 6"
[1] "7 9"
[1] "34 34"
[1] "6 7"
For this toy example it is easier to just compute
paste(x, y)
but I assume you plan on doing something more
substantial that isn't already vectorized.
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of sagarnikam123
Sent: Friday, February 03, 2012 1:32 AM
To: r-help at r-project.org
Subject: [R] iterating through for loop
how to iterate two elements each through for loop?
e.g. x<-c(1,2,4,7,34,6)
y<-c(3,5,6,9,34,7)
for(z in x){
print(paste(z,y)) }
i want both element of vector iterate serially with same position
--
View this message in context: http://r.789695.n4.nabble.com/iterating-through-for-loop-
tp4354101p4354101.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.