panel date的用法和樣例：
例句
- This paper's econometric analysis of household level panel data from China largely corroborates these theoretical propositions.
本文利用面板數據的計量分析在很大程度上證明了后悔效應的存在。 - This paper explores the effect of integration of trade and investment on the R&D investments by panel data model and principal components analysis.
本文利用面板數據模型，結合主成分分析法，研究了中國貿易投資一體化對研發(fā)投入的影響。
