R: Dimension names in tables and multi-dimensional arrays

Question

Since a function that I use requires a table object as parameter, I would like to convert a multidimensional array to a table, but I have problems with dimension names.

Answer 1

as.table doesn't have a dnn argument. You need to set the dimnames manually.

my2dimdata <- array(c(1,0,0,0,1,2,0,0,1),dim=c(3,3),
                    dimnames=list(c("a","b","c"),
                                  c("1","2","3")))

my2dimdata <- as.table(my2dimdata)
names(attributes(my2dimdata)$dimnames) <- c("letters","numbers")

#        numbers
# letters 1 2 3
#       a 1 0 0
#       b 0 1 0
#       c 0 2 1