Nothing
## ---- include = FALSE---------------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## ----setup--------------------------------------------------------------------
library(ezcox)
## ---- fig.width=7, fig.height=5-----------------------------------------------
library(survival)
lung$ph.ecog <- factor(lung$ph.ecog)
ezcox_group(lung, grp_var = "sex", covariate = "ph.ecog")
ezcox_group(lung, grp_var = "sex", covariate = "ph.ecog", controls = "age")
ezcox_group(lung, grp_var = "sex", covariate = "ph.ecog", controls = "age", add_all = TRUE)
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