Brendan,
I think you should create objects outside of the "for" loop. You can't
create objects instide the loop. You can try this:
metalist1<-list()
for(i in 1:10)
{metalist1[[i]]<-assign(paste("theta1_",i,sep=""),data.frame(scale(rnorm(250))))}
lapply(metalist1,function(x){print(dim(x))}) # Checking it out
metalist2<-list()
for(i in 1:10)
{metalist2[[i]]<-assign(paste("theta1_",i,sep=""),data.frame(scale(rnorm(250))))}
lapply(metalist1,function(x){print(dim(x))}) # Checking it out
metalist3<-list()
for(i in 1:10) {metalist3[[i]]<-metalist1[[i]]+metalist2[[i]]}
lapply(metalist3,function(x){print(dim(x))}) # Checking it out
# Checking
sum(metalist1[[1]]+metalist2[[1]])
sum(metalist3[[1]])
Dimitri
On Mon, Apr 20, 2009 at 2:35 PM, Brendan Morse <morse.bren...@gmail.com> wrote:
> Hi everyone, I am trying to calculate a particular variable (vector) from
> some previously defined variables in a loop but I am having trouble figuring
> out how to get the loop to recognize that it should index for the previously
> defined objects. Here is a simplified version of what I am trying to do:
>
> for(i in 1:10){
>
> assign(paste("theta1_",i,sep=""),data.frame(scale(rnorm(250))))
>
> assign(paste("theta2_",i,sep=""),data.frame(scale(rnorm(250))))
> assign(paste("theta3_",i,sep=""),data.frame(theta1_i +
> theta2_i)
> }
>
> I am having trouble with getting it to recognize that theta3_i should be
> calculated using theta1_i and theta2_i in the third line. In other words,
> theta3_1 should equal theta1_1+theta2_1 whereas theta3_2 should equal
> theta1_2+theta2_2
>
> Any advice as to where I am losing this one?
>
> Thanks,
> brendan
>
> [[alternative HTML version deleted]]
>
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>
--
Dimitri Liakhovitski
MarketTools, Inc.
dimitri.liakhovit...@markettools.com
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