更改

第16行: 第16行:     
== 参考资料 ==
 
== 参考资料 ==
 
+
<references />
# Causal Inference for Statistics, Social, and Biomedical Sciences
  −
# https://www.gsb.stanford.edu/faculty-research/faculty/guido-w-imbens
  −
# https://en.wikipedia.org/wiki/Guido_Imbens
  −
# https://en.wikipedia.org/wiki/Donald_Rubin
 
4

个编辑