I'm trying to dynamically build variable names to use on a list. Let's say I
have a list like this one:
l <- list(V1_1=c(1,2,3), V1_2=c('One','Two','Three'))
And I succesfully build my variable name like this:
paste('l$', 'V1_1', sep='')
Why can't I just run a mean call with the pasted variable name?
mean(paste('l$', 'V1_1', sep=''))
So, my question is; How do one build variable names dynamically to be able to
use them on an R list.
-----------------------------------------------------------------------
> sessionInfo()
R version 2.11.0 (2010-04-22)
i486-pc-linux-gnu
locale:
[1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C
[3] LC_TIME=en_US.utf8 LC_COLLATE=en_US.utf8
[5] LC_MONETARY=en_US.utf8 LC_MESSAGES=en_US.utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=en_US.utf8
[9] LC_ADDRESS=en_US.utf8 LC_TELEPHONE=en_US.utf8
[11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=en_US.utf8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] foreign_0.8-40
loaded via a namespace (and not attached):
[1] tools_2.11.0
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