Hi,
I have one question on expand.grid() function.
When I write following syntax :expand.grid(c("u", "l"), c("u", "l"), c("u",
"l")) I get following as desired :
Var1 Var2 Var3
1 u u u
2 l u u
3 u l u
4 l l u
5 u u l
6 l u l
7 u l l
8 l l l
However I wanted to write that in more concise manner. Therefore I tried :
expand.grid(rep(c("u", "l"), 3)). But I did not get answer that I previously
got. Can people here clarify me why it is not like that? Then what would be the
mose concise way to do that?
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