我有一个名为";组";,该组有3个类别(ALTO、MEDIO、BAJO(。在我的二项式族glm中,摘要显示了截距+BAJO和MEDIO,但我需要在我的tab_model中只看到ALTO和MEDIO并让BAJO作为截距。有什么办法可以改变这个设置吗?
mSUI1d <- glm(Suicidio ~ Grupo, data = PAIS_PBI, family = binomial)
> mSUI1d
Call: glm(formula = Suicidio ~ Grupo, family = binomial, data = PAIS_PBI)
Coefficients:
(Intercept) GrupoBAJO GrupoMEDIO
-1.35703 0.12204 0.07421
Degrees of Freedom: 42454 Total (i.e. Null); 42452 Residual
(1027 observations deleted due to missingness)
Null Deviance: 44250
Residual Deviance: 44230 AIC: 44240
这是我的tab_model:
Odds Ratios IC (95%)
GrupoBAJO 1.13 *** 1.07 – 1.20
GrupoMEDIO 1.08 * 1.02 – 1.14
Observations 42455
您可以使用relevel()
函数来指定因子的哪个级别是参考级别。假设变量Grupo已经是一个因素,这应该有效:
PAIS_PBI$Grupo <- relevel(PAIS_PBI$Grupo, ref = "BAJO")