I am working with the trial database and I wanted to add N after the Grades. I think N={n} needs to be added to modify_spanning_header but I dont know how to make that work.
Here is the code:
trial %>%
select(trt, grade, age, stage) %>%
mutate(grade = paste("Grade", grade)) %>%
tbl_strata(
strata = grade,
~.x %>%
tbl_summary(by = trt, missing = "no") %>%
modify_header(all_stat_cols() ~ "**{level}**")
)
CodePudding user response:
Example Below!
library(gtsummary)
packageVersion("gtsummary")
tbl <-
trial %>%
select(trt, grade, age, stage) %>%
mutate(grade = paste("Grade", grade)) %>%
tbl_strata(
strata = grade,
~.x %>%
tbl_summary(by = trt, missing = "no") %>%
modify_header(all_stat_cols() ~ "**{level}**"),
.header = "**{strata}** N={n}"
)