Hi,
You could reduce those steps by:
as.data.frame(do.call(rbind,a2))
A.K.
----- Original Message -----
From: Abdul Rahman bin Kassim (Dr.) <rahm...@frim.gov.my>
To: John Kane <jrkrid...@inbox.com>; "r-help@r-project.org"
<r-help@r-project.org>
Cc:
Sent: Friday, May 31, 2013 11:47 AM
Subject: Re: [R] Returning combine output from R loop
Dear Kane,
Thanks for your response and improve R script. With additional R script below,
my question has been resolved. Thanks again for your kind help.
b1<-data.frame(a2[1])
b2<-data.frame(a2[2])
b3<-data.frame(a2[3])
bb<-rbind(b1,b2,b3)
---
Abd Rahman
________________________________________
From: John Kane [jrkrid...@inbox.com]
Sent: Friday, May 31, 2013 10:33 PM
To: Abdul Rahman bin Kassim (Dr.); r-help@r-project.org
Subject: RE: [R] Returning combine output from R loop
One way is to put them in a list.
Does this help?
a0 <- data.frame(initial_size=sample(30,10),sp=gl(2,5,10),
grow=as.numeric(as.character(gl(2,5,10)))*0.5)
a2<- list()
for( i in 1:3){
a1 <- a0$initial_size+a0$grow
a2[[i]] <- cbind(sp=a0$sp,initial_size=a1+i,yr=i)
}
John Kane
Kingston ON Canada
> -----Original Message-----
> From: rahm...@frim.gov.my
> Sent: Fri, 31 May 2013 06:36:58 +0000
> To: r-help@r-project.org
> Subject: [R] Returning combine output from R loop
>
> Dear R-User,
>
> Appreciate any advice on producing combine output from an R loop.
> Planning to project the growth (grow) of plant species (sp) from its
> initia size (initial_size). Using the follwing example, how can I produce
> the results combining the output from 3 iteration. The ouput a2 produce
> only the last iteration.
>
> Thanks in advanced for your advice.
> ---------
> a0 <- data.frame(initial_size=sample(30,10),sp=gl(2,5,10),
> grow=as.numeric(as.character(gl(2,5,10)))*0.5)
>
> a2<-c(0)
> for( i in 1:3)
> {
> a1 <- a0$initial_size+a0$grow
> a2<- cbind(sp=a0$sp,initial_size=a1+i,yr=i)
> a2}
>
> a2
> ---------
>
> Abd Rahman
>
>
>
>
> Dr. Abd Rahman Kassim
> Program Kualiti Air
> Bahagian Perhutanan & Alam Sekitar
> Institut Penyelidikan Perhutanan Malaysia
> Kepong 52109
> Selangor
>
> Fax:03-62729852
> Tel: 013-3380905/03-62797179
> Email: rahm...@frim.gov.my
>
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
