为了避免混淆，我通常建议在您刚接触R时不要使用太多花哨的包。字面翻译可能如下所示（尝试前重新加载dat...
stata foreach用法 Stata foreach用法是指使用Stata软件中的foreach命令来实现对一组变量或表达式进行循环处理。它可以节省用户大量的时间,提高工作效率。 一、foreach语法 foreach varlist in list {command} 其中,varlist是变量列表,即你要处理的变量;list是变量值列表,即你要处理的值;command是要执行的命令,可以...
I am having a problem with the foreach command in stata10. It was not working with my own dataset so I attempted to use the example from Cleves et al An Inroduction to Survival Analysis Using Stata 2nd ed and the example does not work either. If you are unfamiliar, this example uses...
在foreach循环中,如果选择所有变量,可以写成: foreachvarof varlist_all{command}或foreachvarof varlist*{command} 参考资料
是一种用于循环操作的命令。它允许用户在Stata中对数据进行迭代处理,可以在数据集中的每个观测值上执行相同的操作。 该命令的基本语法如下: ``` foreach varname of varlis...
foreach x in alpha "one two" three four { display display `" x is |`x'|"' display `"ferest() is |`ferest()'|"' } The continue command provides a method of prematurely terminating a loop. © Copyright 1996–2019 StataCorp LLC | Terms of use | Privacy | Contact us | What...
While importing a large dataset in work, I noticed some unexpected behaviour where Stata appears to "forget" a local macro, when using theappendcommand. This seems all the more strange as it appears to be a phenomenon specific to this one command (I tested withsaveand the code worked as ...
* by side effect menans any colacteral effect of application that can change the statate/behaviour or introuce bugs in the application, like IO. ** by "pure", it's in apostrophe since the functions it's not pure and the code can be converged to a pure version, ...
The commandlevelsofis used to produce a list of the distinct values in a variable, which can be particularly useful when the variable is integer-valued or string-valued. (The corresponding Stata 8 command islevels.) If, with theautodata, you type ...
From"Martin Weiss" <martin.weiss1@gmx.de> To<statalist@hsphsun2.harvard.edu> Subjectst: RE: bootstrap sampling and foreach DateThu, 20 Aug 2009 00:09:31 +0200 Follow-Ups: st: RE: RE: bootstrap sampling and foreach From:"Gallagher, Kelly, DOH" <Kelly.Gallagher@state.nm.us> ...