An observational block design has I blocks matched for covariates and J individuals per block, but treatments were not randomly assigned to individuals within blocks, as would have been done in an ...

中文翻译：

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观测研究补充分析中的紧缩模块：优化算法和示例


观察性区组设计有 I 个区与协变量相匹配，每个区有 J 个个体，但治疗并不是随机分配给区中的个体，就像在......