sampling - 0.38 3 87 0.24 4 55 0.51 5 60 0.39 6 97 0.9 7 81...

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To select a random sample of 5, sort all the data by "rand" and take the first five observations. id val rand 1 83 0.96 2 22
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Unformatted text preview: 0.38 3 87 0.24 4 55 0.51 5 60 0.39 6 97 0.9 7 81 0.9 8 79 0.5 9 100 0.75 10 83 0.75 11 94 0.23 12 43 0.19...
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