[R] Using variable names in data frame

[Michael McStephen]

Hi All,

I'm trying to use the names from a data frame to display data in the 
frame:

> data.n<-names(data) # put names into a vector called data.n
data.n[1]
[1] "ID"

>
> paste("data$",data.n[1],sep="") # create the name of the column in 
the dataframe
[1] "data$ID"
 
> as.symbol(paste("data$",data.n[1],sep=""))
data$ID

> eval(as.symbol(paste("data$",data.n[1],sep="")))
Error in eval(expr, envir, enclos) : Object "data$ID" not found
> 

I want to be able to list the contents of data$ID by using data.n[1] 
just as I would by typing data$ID at the > prompt.

Thanks for any help.

Michael.

----------------------------------------------------------
Michael McStephen          M.McStephen at papyrus.mhri.edu.au
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