Cross-Sectional: The sample of elements is measured only once. This shows you a snapshot of variables at a point in time (e. g. , market survey).

横截面数据：成分数据只测量一次。这展示你的变量在一个时间点的快照（如：市场调查）。

youdao

Cross-Sectional: The sample of elements is measured only once. This shows you a snapshot of variables at a point in time (e. g. , market survey).

横截面数据：成分数据只测量一次。这展示你的变量在一个时间点的快照（如：市场调查）。

youdao