"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 variables converted from step 2, indexed byind1, will not have any unused factor levels. Nevertheless, factor variables fromdatmight have unused levels, which could be due to step 0 and step 1. Therefore, we need to ensure that any possible unused levels are dropped from these variabl...
st: Collapse error: "Factor variables not allowed" From: Lynne Morgan <lmorgan3@wisc.edu> Prev by Date: st: SSC Archive updates Next by Date: st: Optimizing recoding procedures Previous by thread: st: Collapse error: "Factor variables not allowed" Next by thread: st: SSC Archive ...
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...
to the factor variables, i.e., whether the slopes are similar between categorical factors. Distribution analyses and ANCOVAs were computed using Stata 10.0 (StataCorp LP, College Station, Texas, USA) withp < 0.05. The statistical package (S)MATR97was used to compare the regression slopes...
We further performed a Cox multivariable regression analysis which included candidate variables with P < 0.2 in Cox univariate regression. The multivariable analysis revealed that S100A8/A9 expression is an independent prognostic factor of OS for breast cancer patients (HR = 3.425, 95%CI ...
The dataset contains four indicator variables (read, write, math & science) that we will use in our single-factor model. The diagram for a single-group model looks like this: We will use female (0=male, 1=female) as the multiple-group indicator. ...
Although we had information on learning difficulties which gave us some indication of ASD severity, we did not have specific ASD severity which is an important aspect to explore in future research. Additionally, due to the inability to capture exposure variables for the whole population at risk, ...
For example, in a two-way ANOVA, let’s say that your two independent variables (factors) are Age (young vs. old) and Marital Status (married vs. not). Let’s say there are twice as many young people as old. So unequal sample sizes. And say the younger group has a much larger ...
Re: st: Error: factor variables and time-series operators not allowed r(101) From: Nick Cox <njcoxstata@gmail.com>Prev by Date: Re: st: Error: factor variables and time-series operators not allowed r(101) Next by Date: re: Re: st: Error: factor variables and time-series operator...