"factor-variable operators not allowed"错误的含义与解决方案 错误含义 "factor-variable operators not allowed" 错误通常出现在使用 Stata 或其他统计软件时,尤其是在尝试对因子变量(factor variables)进行某些不被支持的操作时。因子变量通常用于表示分类数据,如性别(男/女)、地区(东/中/西)或年份等。错误消息表明...
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.几个小...
What is the range of categorical variables for factor-variable operators? Non-integer values are not allowed in factor variables for Stata ANOVA Solution: The documented limits can be found inhelp fvvarlist. The factor-variable operators can only be applied to categorical variables that have nonne...
Dear Statausers, When I run this command: tsset dtt probit y l.x1 l.x2 mfx I get the following error: factor variables and time-series operators not allowed r(101); What could be the reason for no mfx for lagged variables in time-series? Or am I missing something? Any comments woul...
stata.com Remarks and examples tpoisson fits a truncated Poisson regression model by maximum likelihood estimation when the number of occurrences of an event is restricted to be above a truncation point, below a truncation point, or between two truncation points. If the dependent variable is not ...
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.几个小时前一个学术群里面刚好在讨论这个中介效应模型,我不想回答这个中介效应检验的问...
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...
可这样依然会提示“factor-variable and time-series operators not allowed”。 你可能还会想,咦,是括号不对吧,再加上括号... 这样继续肝下去身体还要不要啦?! 正确的方法是,通过先生成对应的log运算变量,再运行命令。 clear use "/Users/mac/Desktop/数据/计算/基础指标完成" tsset id year gen log_y=log...