[R] Problem with retrieving updated variables after attach()
david.croll at gmx.ch
Tue Feb 10 12:02:53 CET 2009
suppose I have a data frame:
1 NA NA
2 NA NA
3 NA NA
4 NA NA
5 NA NA
Then I attach the data frame:
I assign some new values...
> id <<- sample(100,5)
> age <<- rnorm(5,mean=30)
Then I want to create a new data frame from the variables id and age which still are attached to position 2 of the R environment...
> new_mat <- data.frame(ls(pos=2)) # I want to rescue ALL variables that were created by attach(mat)
But this leads to a bogus object... how can I rescue the updated id and age values into new_mat?
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