In R, what is the fastest way(shortest code) to print multiplication table? The functions seq rep and the bind functions help, but I\'m looking for the shortest line(s) of c
tbl <- outer(1:6, 1:12, "*")
rownames(tbl) <- paste(1:6, "'s", sep="")
tbl
You could make slightly more compact by using paste0(1:6, "'s")
This seems a slight improvement:
> v<-setNames(1:6, paste0(1:6, "\'s"))
> v %o% v
1's 2's 3's 4's 5's 6's
1's 1 2 3 4 5 6
2's 2 4 6 8 10 12
3's 3 6 9 12 15 18
4's 4 8 12 16 20 24
5's 5 10 15 20 25 30
6's 6 12 18 24 30 36