Thanks baptiste. Works as expected.
ampy
ampc wrote:
>
> Manipulating Arrays
> Using the below data:
>
> df <- structure(list(dim1 = structure(c(1L, 3L, 1L, 4L, 1L, 2L, 2L,
> 2L, 3L, 1L, 4L, 3L, 4L, 4L, 3L, 2L), .Label = c("a1", "a2", "a3",
> "a4"), class = "factor"), dim2 = structure(c(2L
Hi,
the abind package can help you with the first query,
## add values
library(abind)
arr <- abind(arr,arr[1,,,] * 2 + 1,along=1)
dim(arr)
as for the second, maybe you can use negative indexing,
## remove values
arr <- arr[-2,,,]
HTH,
baptiste
2009/10/11 ampc :
>
> Manipulating Arrays
> Usin
Manipulating Arrays
Using the below data:
df <- structure(list(dim1 = structure(c(1L, 3L, 1L, 4L, 1L, 2L, 2L,
2L, 3L, 1L, 4L, 3L, 4L, 4L, 3L, 2L), .Label = c("a1", "a2", "a3",
"a4"), class = "factor"), dim2 = structure(c(2L, 1L, 2L, 2L,
4L, 3L, 1L, 3L, 1L, 3L, 2L, 4L, 3L, 4L, 1L, 4L), .Label =
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