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nowait
2011 Sep 26
2
Randomly selecting rows with unique values in two columns
Hello,
I am trying to randomly select rows with unique values in columns 1 and 2. I
want to generate multiple subsets to estimate a statistic for each data set.
Below is a simplified example.
L1 L2 L3 L4 L5
1 a b 1 2 3
2 a c 4 5 6
3 a d 7 8 9
4 a e 10 11 12
5 a f 13 14 15
6 b c 16 17 18
7 b d 19 20 21
8 b e 22 23 24
9 b f 25 26 27
10 c d 28 29 30
11 c e