HarlanH/JuliaData — pull request #1 by tshort (2012-07-13 19:34:04+00:00)
Title: Added make_unique() and changed cbind to use it.

```julia
julia> make_unique(["a", "a", "a_2", "a"])
4-element ASCIIString Array:
"a"
"a_1"
"a_2"
"a_3"

julia> d = DataFrame({[1:4], [1:4]})
DataFrame (4,2)
x1 x2
[1,] 1 1
[2,] 2 2
[3,] 3 3
[4,] 4 4

julia> cbind(d,d)
DataFrame (4,4)
x1 x2 x1_1 x2_1
[1,] 1 1 1 1
[2,] 2 2 2 2
[3,] 3 3 3 3
[4,] 4 4 4 4
```