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dimmy
2008 Aug 08
1
operating on arrays of unknown dimensionality
...diminsionality:
In this example we create an array x, a smaller array y and then assign y to a slice of x.
> dimnmx <- list(c('a','b'), c('x','y','z')); x <- array(0, dim=sapply(dimnmx, length), dimnames=dimnmx)
> x
x y z
a 0 0 0
b 0 0 0
> dimnmy <- list(c('a','b'), c('x','z')); y <- array(1, dim=sapply(dimnmy, length), dimnames=dimnmy)
> y
x z
a 1 1
b 1 1
> x[dimnames(y)[[1]], dimnames(y)[[2]]] <- y
> x
x y z
a 1 0 1
b 1 0 1
Now suppose I have an arbitrary lists dimnmx and dimnmy whic...