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...
紧接着,不死心的你可能又继续想用log(y)去代替log_y,貌似可以运行的样子: prodest log(GYZJZBB) method(lp) free log(L) log(L2) proxy log(M) state log(k) valueadded acf id(id) t(year) reps(50) predict lpacf, resid 可这样依然会提示“factor-variable and time-series operators not allowe...
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...
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...
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 nonnegative integers ranging from 0 to 32,740, inclusive. ...