groups
groups lists the distinct groups of varlist occurring in the dataset and their frequencies and/or percents. groups is perhaps most useful with categorical variables, but has other uses. Groups are by default presented in the sort order of varlist. Note that there is no limit on the number of variables in varlist.
公卫考场
Frequencies are counts or other measures of abundance.
Percents are percents of each total frequency.
公卫家园
附件列表
词条内容仅供参考,如果您需要解决具体问题
(尤其在法律、医学等领域),建议您咨询相关领域专业人士。