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sk_err
2012 Jun 30
3
Accessing named members of a list in an array
Dear List,
I've created a two-dimensional array which shall contain a value and its
error, respectively.
These two values are concatenated in al list and bear the names "sl" and
"sl_err"
But I can't adress them using the $-notation.
a<- array(list(NULL),dim=c(2,2))
a[[1,1]]<- c(a=2,b=3)
a[[1,1]]$a
## Fehler in a[[1, 1]]$a : $ operator is invalid for atomic vectors
a[[1,1]]["a"] # This works however.
## a
## 2
I always thought these two methods of...