id | score | stratum |
---|---|---|
12 | 93 | excellent |
28 | 90 | excellent |
60 | 97 | excellent |
78 | 91 | excellent |
90 | 100 | excellent |
8 | 57 | fair |
10 | 27 | fair |
21 | 5 | fair |
24 | 11 | fair |
27 | 44 | fair |
37 | 14 | fair |
46 | 19 | fair |
49 | 8 | fair |
79 | 71 | fair |
81 | 13 | fair |
85 | 79 | fair |
94 | 76 | fair |
20 | 85 | very good |
53 | 87 | very good |
95 | 84 | very good |
The sum over stratum_count with a non-null stratum value must equal the total population size. Otherwise, the final sample output might not approximate the target sample fractions well.