如果想要控制city和year的cluster,那么我的代码是,这个表达的意思应该是同一个城市同一年里面相关 areg y x, cluster(city#year) 我的问题是如果想要做一个twoway cluster,cluster到城市和行业也是这样的代码吗,如果是这样的代码,那这个表达的意思应该是同一个城市同一行业里面相关(相当于同一个城市和同一个行业的...
但在bootstrap时[1],有时会遇到repeated time values within panel这样的问题。 运行如下代码,我们会得到报错的提示, bootstrap _b, reps(200) cluster(city): reghdfe Y X, a(city year) 报错提示 之所以是“有时”,是因为报错与否取决于你是否提前 `xtset`。 如果提前 xtset,则会报错 如果没有,那么会...
Define Super cluster. Super cluster synonyms, Super cluster pronunciation, Super cluster translation, English dictionary definition of Super cluster. n. A group of neighboring clusters of galaxies. American Heritage® Dictionary of the English Language
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook family cluster Epidemiology A grouping of disorders found in ≥ 2 members of a family McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc. ...
At a news conference on Nov 16 last year, Qingdao Mayor Zhao Haozhi said that Qingdao is one of China's coastal economic centers, a tourist destination and a famous historical and cultural city. It has been leading the development of Shandong and seen positive changes since reform and opening...
areg y x, cluster(city#year) 我的问题是如果想要做一个twoway cluster,cluster到城市和行业也是这样的代码吗,如果是这样的代码,那这个表达的意思应该是同一个城市同一行业里面相关(相当于同一个城市和同一个行业的交集)。但是实际上twoway cluster的意思是取相当于同一个城市和同一个行业的并集,那twoway clus...
The results show that the development of Type Ⅰ city clusters can lead to the widest inter-city disparity, and that of Type Ⅱ city clusters ranks the second place in this regard, while that of Type Ⅲ city clusters can narrow the inter-city disparity.Furthermore, using the 268-year ...
We should develop city clusters and form polycentric, multi-level, and multi-node urban agglomeration networks. There must not only be strong interconnections between cities, but also necessary ecological and security barriers. ——2020年...
China is considering building a global city cluster in the Beijing-Tianjin-Hebei region — and more steps to further promote the coordinated development of the region are in the offing, according to the country's top econo...
digital creations are key to protecting the thousand-year-old district. As well as Suzhou Industrial Park, the City Operations Linkage Center in Gusu district is another application of Huawei's Smart City technologies in Suzhou. The center is part of the Smart Gusu Pr...