Split-Column Expression

Renders the expression for column split in rtables depending on:

• the expected or not arm comparison

• the expected or not arm combination

split_col_expr(compare, combine, ref, arm_var)

Arguments

compare

(logical)
if TRUE the reference level is included.

combine

(logical)
if TRUE the group combination is included.

ref

(character)
the reference level (not used for combine = TRUE).

arm_var

(character)
the arm or grouping variable name.

Value

a call

Examples

split_col_expr(
  compare = TRUE,
  combine = FALSE,
  ref = "ARM A",
  arm_var = "ARMCD"
)
#> rtables::split_cols_by(var = "ARMCD", ref_group = "ARM A")