2024年3月30日
stata 形成月度数据
摘要： clear set obs 12 gen m=_n gen bz=1 save yue,replace clear set obs 10 gen year=2012+_n gen bz=1 joinby bz using yue drop bz sort year m gen d=1 tostrin 阅读全文
posted @ 2024-03-30 09:43 myrj 阅读(36) 评论(0) 推荐(0) 编辑