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我的SPSS有问题。例如,在16SPSS 文件开头具有 ID 的人同时隶属于boston scientific coorp和american water works。我可以检测出有多少这样的案例(百分比和数量)?
16
boston scientific coorp
american water works
data - identify duplicate cases
personid
name
data -selecte cases
analyze - descriptives - frequencies