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environ
2009 Feb 10
2
Problem with retrieving updated variables after attach()
Hello,
suppose I have a data frame:
> mat
id age
1 NA NA
2 NA NA
3 NA NA
4 NA NA
5 NA NA
Then I attach the data frame:
> attach(mat)
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 <-