notnull().sum(),需要注意的是,Stata 中egen 命令的这些函数,生成的 newvar 在 Stata 中是完整(常量)列,而在 Python 中是 scalar 。 因为Python 的 DataFrame 里面没有 Stata 中 label 的概念,所以不能像 Stata 添加值标签。必要时,可以通过定义字典映射变量取值和标签。 代码语言:javascript 代码运行次数:0...
出現了"sample may not include multiple panels" 因為我觀察的公司很多 樣本年度都很完整 於是我進一步去跑 cochrane-Orcutt. 結果他出現這樣的字眼 Number of gaps in sample: 547 (gap count includes panel changes) (note: computations for rho restarted at each gap) ...
上述命令中,L(1/2).lwage表示L1.wage L2.wage,L(0/1).wks表示wks L1.wks;gmm(lwage, lag(2 4))表示使用lwage的 2-4 阶作为 GMM 式工具变量,gmm(wks ms union, lag(2 3))表示使用wks ms union的 2-3 阶作为 GMM 式工具变量,iv(occ south smsa ind)表示使用occ south smsa ind作为自身工...
{result:21.3}" display "error: variable not found" display "{txt}the variable mpg has mean {res:21.3} in the sample" display "When using the {cmd:summarize} command, specify" display "{cmdab:su:mmarize}[{it:varlist}][{it:weight}][{cmdab:if} {it:exp}]" display "{opt replace}...
No never treated observations found. Using Not yet treated data Panel is not balanced Will use observations with Pair balanced (observed at t0 and t1) ...x...x...x...x...x...xxxxxxxx Difference-in-difference with Multiple Time Periods Number of obs = 1,207 Outcome model : weighted ...
我已经声明了一个本地宏,它对应于我的Stata项目中的几个变量名:我希望能够使用宏letters中的所有变量生成一个新变量。gen highest_letter =max(`letters')a b c d not found genhighest_letter = 浏览2提问于2017-02-06得票数 0 回答已采纳 1回答 ...
(file aiq_accinfocomindexincy.dta not found) file aiq_accinfocomindexincy.dta saved Contains data from aiq_accinfocomindexincy.dta Observations: 1,000,000 Variables: 7 27 Mar 2023 13:52 --- Variable Storage Display Value name type format label Variable label ---...
7.Stata最有用的points都在这里,无可替代的材料 8.reg3, 多元回归, 面板数据, 方差分析, 异方差和自相关检验和修正的Stata程序Handbook 9.Stata统计功能、数据作图、学习资源等,一文打尽所有你的wonders 10.为发表SSCI刊物, 必看这21篇文章 如果你不懂下面每个程序运行的是什么,你可以到社群交流探讨。
Distributed lag nonlinear models (DLNMs) in StataAbstract: The distributed lag nonlinear models (DLNMs) represent a modeling framework to flexibly describe associations showing potentially nonlinear and delayed effects in time-series data. (Read more) ...
(file gr2_1.gph not found)file gr2_1.gph saved(file gr2_2.gph not found)file gr2_2.gph saved(file gr2_3.gph not found)file gr2_3.gph saved(file gr3_1.gph not found)file gr3_1.gph saved(file gr3_2.gph not found)file gr3_2.gph saved(file gr3_3.gph not found)file gr...