Dear R helpers
Suppose I have a data frame as given below
mydat = data.frame(x = c(1,1,1, 2, 2, 2, 2, 2, 5, 5, 6), y = c(10, 10, 10, 8,
8, 8, 7, 7, 2, 2, 4))
mydat
x y
1 1 10
2 1 10
3 1 10
4 2 8
5 2 8
6 2 8
7 2 7
8 2 7
9 5 2
10 5 2
11 6 4
unique(mydat$x) will give me 1, 2, 5, 6 i.e. 4 values and
unique(mydat$y) will give me 10, 8, 7, 2, 4.
What I need is a data frame where I will get a vector (say) x_new as (1, 2, 2,
5, 6) and corresponding y_new as (10, 8, 7, 2, 4). I need to use these two
vectors viz. x_new and y_new seperately for further processing. They may be
under same data frame say mydat_new but I should be able to access them as
mydat_new$x_new and similarly for y.
I tried following way.
pp = paste(mydat$x, mydat$y)
pp = > pp
[1] "1 10" "1 10" "1 10" "2 8" "2 8" "2 8" "2 7" "2 7" "5 2" "5 2" "6
4"
qq = unique(pp)
> qq
[1] "1 10" "2 8" "2 7" "5 2" "6 4"
So I get the desired pairs, but I want each element of pair in two columns
seperately as
x_new y_new
1 10
2 8
2 7
5 2
6 4
Kindly guide
Vincy
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