modify_zero_recode: Zero Count Recode

In crane: Supplements the 'gtsummary' Package for Pharmaceutical Reporting

Zero Count Recode

Description

This function removes the percentage from cells with zero counts. For example,

0 (0.0%)      -->  0
0 (0%)        -->  0
0 (NA%)       -->  0
0 / nn (0%)   -->  0 / nn
0/nn (0.0%)   -->  0/nn
0 / 0 (NA%)   -->  0 / 0

Usage

modify_zero_recode(x)

Arguments

x	(gtsummary) a gtsummary table

Details

The function is a wrapper for gtsummary::modify_post_fmt_fun().

gtsummary::modify_post_fmt_fun(
  x,
  fmt_fun = \(x) {
    dplyr::case_when(
      # convert "0 (0%)" OR "0 (0.0%)" OR 0 (NA%) to "0"
      str_detect(x, "^0\\s\\((?:0(?:\\.0)?|NA)%\\)$") ~ str_remove(x, pattern = "\\s\\((?:0(?:\\.0)?|NA)%\\)$"),
      # convert "0 / nn (0%)" OR "0/nn (0.0%)" OR 0/0 (NA%) to "0 / nn" OR "0/nn" OR "0/0"
      str_detect(x, pattern = "^(0 ?/) ?\\d+[^()]* \\((?:0(?:\\.0)?|NA)%\\)$") ~ str_remove(x, pattern = "\\s\\((?:0(?:\\.0)?|NA)%\\)$"),
      .default = x
    )
  },
  columns = gtsummary::all_stat_cols()
)

Value

a gtsummary table

Examples

trial |>
  dplyr::mutate(trt = factor(trt, levels = c("Drug A", "Drug B", "Drug C"))) |>
  tbl_summary(include = trt) |>
  modify_zero_recode()

crane documentation built on Aug. 30, 2025, 1:12 a.m.