Your problem is that you are trying to
use `$` on an atomic vector rather than
a list:
> a<- array(list(NULL),dim=c(2,2))
> a[[1,1]] <- c(a=2,b=3)
> a[[1,1]]$a
Error in a[[1, 1]]$a : $ operator is invalid for atomic vectors
> a[[1,1]]
a b
2 3
> a[[1,1]] <- list(a=2,b=3)
> a[[1,1]]$a
[1] 2
> a[[1,
On 2012-06-30 09:04, David Winsemius wrote:
On Jun 30, 2012, at 9:35 AM, mlell08 wrote:
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 adres
Hi,
You can use these as well to access named members.
> a[1]
[[1]]
a b
2 3
>a[1][[1]][1]
a
2
> a[[1,1]][1]
a
2
>a[[1,1]][2]
b
3
>identical(a[[1,1]]["a"],a[[1,1]][1],a[1][[1]][1])
[1] TRUE
> a[[1,1]][["a"]]
[1] 2
> a[[1,1]][["b"]]
[1] 3
or,
> a[[c(1,2)]]
[1] 3
>a[[c(1,1)]]
[1]
On Jun 30, 2012, at 9:35 AM, mlell08 wrote:
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
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