R help - Nov 2006 - Using multiple objects in a for loop

I have a situation where I want to perform the same manipulations to multiple R
objects in series. I have constructed a vector () to serve as a list of the
objects. However, my assign() assigns the object name (on[j]) as a character
string to "temp" and not the object itself.

======================================
fn<-c("FT1.1.01.RData","FT1.1.02.RData")

on<-c("FT1101","FT1102")

b<-1
e<-2

for (i in 1:2){

	for (j in b:e){

load(fn[j])
assign("temp",on[j])

.
.
.
rm(paste(stderr[i],".t",sep=""))
rm(temp)
rm(fn[i])
}

}

==================================
Daniel

You should use
assign("temp",get(on[j]))

or just
temp<-get(on[j])

as the on[j] IS just a character string. If you want to get the object 
with that name, use get.


Ales Ziberna

Daniel Yanosky pravi:
> I have a situation where I want to perform the same manipulations to
multiple R objects in series. I have constructed a vector () to serve as a list
of the objects. However, my assign() assigns the object name (on[j]) as a
character string to "temp" and not the object itself.
> 
> ======================================> 
> fn<-c("FT1.1.01.RData","FT1.1.02.RData")
> 
> on<-c("FT1101","FT1102")
> 
> b<-1
> e<-2
> 
> for (i in 1:2){
> 
> 	for (j in b:e){
> 
> load(fn[j])
> assign("temp",on[j])
> 
> .
> .
> .
> rm(paste(stderr[i],".t",sep=""))
> rm(temp)
> rm(fn[i])
> }
> 
> }
> 
> ==================================> 
> Daniel
> 
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