Longitudinal data is referred to data in which individuals are measured repeatedly through time, so it combines elements of cross-sectional data and time-series data.
纵向数据是指对每个个体在不同时间进行观测而得到的由截面和时间序列融合在一起的数据。
Longitudinal data is referred to data in which individuals are measured repeatedly through time, so it combines elements of cross-sectional data and time-series data.
纵向数据是指对每个个体在不同时间进行观测而得到的由截面和时间序列融合在一起的数据。
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