clinpubr (version 1.1.1)

combine_multichoice: Combine multi-choice columns into one

Description

Combine multi-choice columns into one, each column consists of booleans whether a choice is presented.

Usage

combine_multichoice(
  df,
  quest_cols,
  sep = ",",
  remove_cols = TRUE,
  remove_prefix = TRUE
)

Value

A data frame with additional columns.

Arguments

df

A data frame.

quest_cols

A named list where each element is a character vector of column names to combine, or a single character vector.

sep

A string to separate the data. Default is ",".

remove_cols

If TRUE, remove the original columns.

remove_prefix

If TRUE, automatically remove common prefix from column names when combining.

Examples

# Single group (backward compatibility)
df <- data.frame(q1 = c(TRUE, FALSE, TRUE), q2 = c(FALSE, TRUE, TRUE))
combine_multichoice(df, quest_cols = c("q1", "q2"))

# Multiple groups with named list
df <- data.frame(
  a1 = c(TRUE, FALSE, TRUE), a2 = c(FALSE, TRUE, TRUE),
  b1 = c(TRUE, TRUE, FALSE), b2 = c(FALSE, FALSE, TRUE)
)
combine_multichoice(df, quest_cols = list(groupA = c("a1", "a2"), groupB = c("b1", "b2")))