Array algebra
Addition, subtraction etc. of arrays
a1 %a+% a2 a1 %a-% a2 a1 %a*% a2 a1 %a/% a2 a1 %a/0% a2 tab1 %ap% perm tab1 %a_% marg tab1 %a==% tab2 tab1 %a^% extra tab1 %aa% tab2
tab1, tab2 |
Multidimensional arrays with named dimnames (we call them 'named arrays'). |
perm |
A vector of indices or dimnames or a right hand sided formula giving the desired permutiation. |
marg |
A vector of indices or dimnames or a right hand sided formula giving the desired marginal. |
extra |
List defining the extra dimensions. |
a, a1, a2 |
Arrays (with named dimnames) |
Søren Højsgaard, sorenh@math.aau.dk
hec <- HairEyeColor
a1 <- tabMarg(hec, c("Hair", "Eye"))
a2 <- tabMarg(hec, c("Hair", "Sex"))
a3 <- tabMarg(hec, c("Eye", "Sex"))
## Binary operations
a1 %a+% a2
a1 %a-% a2
a1 %a*% a2
a1 %a/% a2Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.