面板数据解释：地区、指标和时间
Assuming there are i regions (1=1, 2, ..., n), j evaluation indicators (j=1, 2, ..., m), and time k (k=1, 2, ..., T), we obtain the original panel data {x_ij (t_k)}.
原文地址: https://www.cveoy.top/t/topic/lAlI 著作权归作者所有。请勿转载和采集!
安全问答是一个知识全球问答,包含丰富的问答知识
Assuming there are i regions (1=1, 2, ..., n), j evaluation indicators (j=1, 2, ..., m), and time k (k=1, 2, ..., T), we obtain the original panel data {x_ij (t_k)}.
原文地址: https://www.cveoy.top/t/topic/lAlI 著作权归作者所有。请勿转载和采集!