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Random stratified (2): Rows are chosen at random within N strata defined by the user. In each stratum, the number of sampled observations is proportional to the relative frequency of the stratum.
直观
对话框和结果的组织结构清晰,便于数据分析和结果解释。
Analyze, customize and share your results within Microsoft Excel using this powerful yet flexible statistical add-on. The XLSTAT trial is followed by a complimentary lifetime limited edition.
XLSTAT data sampling options
XLSTAT offers the following methods for generating a sample of N observations from a table of M rows:
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