st: Making permutations of dyads

[Douglas Levy <douglas_levy@post.harvard.edu>]

Hi All,
I'm trying to create a dataset of all paired permutations of subject
IDs within time blocks or alternatively time bands. My data look like
this:
ID    time  5m_block
1     8:00  1
2     8:02  1
3     8:02  1
4     8:04  1
5     8:06  2
6     8:07  2
7     8:09  2

For 5 minute time blocks,  I'd want to output a dataset that looks like this:
Dyad
12
13
14
21
23
24
31
32
34
56
57
65
67
75
76

For 5m intervals, I'd want:
Dyad
12
13
14
21
23
24
25
31
32
34
35
41
42
43
45
46
52
53
54
56
57
64
65
67
75
76

Thanks for any/all suggestions!
-Doug
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