How to expand.grid with string elements (the half!)
Your question makes no sense at all. The grid expansion
has 9 rows. In case you hadn't noticed, 9 is an odd number
(i.e. not divisible by 2). There are no "halves".
Do not expect the list to read your mind. Instead, ask a
meaningful question.
cheers,
Rolf Turner
On 10/06/13 17:25, Gundala Viswanath wrote:
I have the following result of expand grid:
d <- expand.grid(c("x","y","z"),c("x","y","z"))
What I want is to create a combination of strings but only the half of the all combinations: Var1 Var2 1 x x 2 y x 3 y y 4 z y 5 x z 6 z z What's the way to do it?