在Stata中,当你遇到错误“factor-variable and time-series operators not allowed”时,这通常意味着你在某些命令中使用了不被允许的变量类型或操作符。下面是对此问题的详细解答: 1. 解释factor-variable和time-series operators的含义 Factor Variables(因子变量):在Stata中,因子变量是一种特殊的变量类型,用于表示分...
You can watch a demonstration of these commands by clicking on the links to the YouTube videos below. You can read more about factor-variable notation by clicking on the links to the Stata manual entries below. See it in action WatchIntroduction to factor variables in Stata, part 1: The ...
Stata handles factor (categorical) variables elegantly. You can prefix a variable withi.to specify indicators for each level (category) of the variable. You can put a#between two variables to create an interaction–indicators for each combination of the categories of the variables. You can put#...
A logical variable can be treated in two ways. It can either act as a dummy variable, represented by1forTRUEand0forFALSE, and be considered as "numeric". Alternatively, it can be converted into a two-level factor ifmodel.matrixbelieves that a "to-factor" conversion is necessary based on ...
factor-variable and time-series operators not allow yxzdh 三年级 6 没太用过半参估计的,但是似乎xt这个是面板数据的?stata给出的例子里,都是面板数据,需要对时间进行区分,使用的格式是: xi: xtsemipar y x i.time, nonpar(z)你可以参考一下? 溪日烟尘 托儿所 1 请问楼主这种面板数据的半参数回归...
1.Sobel检验中，标准误、Z值和P值都没有（如下图），请问是什么原因？2.在另一个模型中，我想用的自变量是滞后一期值L.X，但是当我输入sgmediation Y, mv(Z) iv( L.X)时候，输出结果提示：factor-variable and time-series operators not allowed(error in option iv( ))，这种情况怎么办呢？1.几个...
Why is my command not working with factor-variable syntax and/or collinear variables in Stata 11? Answer: As of Stata 11, variables are no longer dropped because of collinearity. Instead, these variables are omitted and are labeled with an “o.” operator in the column names of the resultin...
If I use the preexisting indicators wbc2 and wbc3 (as in the examplein the manual) instead of the factor variable, or if I use -xi- thenestat phtest works. http://www.stata.com/help.cgi?searchhttp://www.ats.ucla.edu/stat/stata/...
Fast Stata commands for large datasets statafactormergecollapsedata-manipulationmataegen UpdatedAug 21, 2023 Stata ladjs/dotenv-parse-variables Star124 Code Issues Pull requests Parse dotenv files for Boolean, Array, and Number variable types, built for Lad ...
用stata作factor analysis