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| 概率比例规模抽样; PPS 抽样 | |||
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| 概率比例规模抽样 (PPS sampling); PPS 抽样 (PPS sampling) | |||
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probability-proportional-to-size sampling : 1 a las frases, 1 temas |
| Estadísticas | 1 |
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| 概率比例规模抽样; PPS 抽样 | |||
| |||
| 概率比例规模抽样 (PPS sampling); PPS 抽样 (PPS sampling) | |||
|
probability-proportional-to-size sampling : 1 a las frases, 1 temas |
| Estadísticas | 1 |