How to format the number of digits for categorical variables in 'gtsummary::tbl_summary'?

Question

I am unable to figure out how to tell the tbl_summary function to display decimal places when summarizing categorical variables. It works quite well with continuous variables like 'mpg', but not for 'cyl'.

library(tidyverse)
library(gtsummary)

# with decimal places
mtcars %>% 
  select(mpg) %>% 
  tbl_summary(digits = list(everything() ~ c(2)))

# no decimal places
mtcars %>% 
  select(cyl) %>% 
  tbl_summary(digits = list(everything() ~ c(2)))

Thanks!

Richi

Daniel D. Sjoberg · Accepted Answer · 2021-04-15T19:41:18.103

10

To update the number of digits the percentages are rounded to use the digits= argument. In the example below, pass c(0, 2). The zero indicates to round the N to the nearest integer, and the 2 indicates to round the percentage to 2 decimal places.

Happy Coding!

library(gtsummary)
packageVersion("gtsummary")
#> [1] '1.4.0'

# with decimal places
tbl <-
  mtcars %>% 
  select(cyl) %>% 
  tbl_summary(digits = list(all_categorical() ~ c(0, 2)))

^{Created on 2021-04-15 by the reprex package (v2.0.0)}

edited Apr 15 '21 at 19:41

answered Mar 11 '20 at 20:11

Daniel D. Sjoberg

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1

Thanks a lot for your answer! Does `style_percent()` works within the digits argument of the tbl_summary function? – RockinRichi Mar 11 '20 at 20:44
1

@RockinRichi if you like the answer provided, you can click the green check mark to indicate the question was answered :) – Daniel D. Sjoberg Mar 12 '20 at 19:26
Looking forward to future features for this great package! – RockinRichi Mar 13 '20 at 11:08

How to format the number of digits for categorical variables in 'gtsummary::tbl_summary'?

1 Answers1