01、Stata内置变量 特征：_variables，均已“_”开头。如：_n表示数据集观察值的序号 _N表示当前数据...
winsor2 $continuous_variables, cut(1, 99) replace (5)在基准回归前 在基准回归前,最好是对一些变量设定暂元,方便后续使用。然后把处理好的数据稳健保存好,以免后续处理不小心剔除了某些样本又要重来。 * 定义全局暂元 global controls = "control1 control2 control3 control4 control5 control6" global ...
上述代码中,_b[varname]是什么?是Stata内置的、不需要我们自己定义的变量,也叫系统变量(System variables)。Stata手册有一小节专门讲述了常见系统变量的含义(见下图)。 常见系统变量:与回归结果相关 _b[varname](也可以写成_coef[varname]):提取回归系数。
4.2. 系统变量(System variables) Expressions may also contain _variables (pronounced "underscore variables"), which are built-in system variables that are created and updated by Stata. They are called _variables because their names all begin with the underscore character, "_". _n: contains the ...
i(varlist) - use varlist as the ID variables i(varlist) is required j(varname [values]) long → wide: varname, existing variable wide → long: varname, new variable takes a variable name or a variable name and a list of values ...
Using outreg2 for summary statistics: all variables in dataset Example6: stata code: cd E:\stata\results sysuse auto, clear outreg2 using 计量经济学服务中心.doc, replace sum(log) Using outreg2 for summary statistics: selected variables
//global为全局单元,用来存储数据的文件地址,可以有效简化命令。 示例: use $data\auto.dta,clear 命令5: clear //删除 当前数据 stata内置变量: 特征:_ variables, 均已”"开头。如: _ n表示数据集观察值的序号 _N表示当前数据集观察值总数 _pi包含pi值以表示精度 ...
Factor variables now show labels Import delimited with preview Import from Haver Analytics Business calendars from data Create Word and Excel files Java plugin API FTP and secure HTTP Stata/MP. As with all of Stata, many of the new features in Stata 13 support multicore processors when using ...
Stata 18新增功能:Alias variables across frames(跨帧的别名变量) 在本节中,作者将描述如何使用别名变量以高效内存的方式跨帧访问变量。 不同frame 中的两个数据集可以通过具有匹配变量来关联。如前所述,可以通过基于公共变量将当前 frame 中的观测值与相关 frame 中的观察值进行匹配,将 frame 与 frlink 链接起来...
rcall allows communicating data sets, matrices, variables, and scalars between Stata and R conveniently stata rstats interfacing stata-package language-interface Updated Jan 10, 2025 Stata Load more… Created by StataCorp 168 followers stata.com Wikipedia Related Topics data-analysis data-...