The reference group is figure-wide state: it decides which cohort is plotted
first, which one is drawn unfilled, which one keeps the reference colour, and
which one every statistical comparison is made against. Setting it once is
what keeps those four answers consistent across a result set.
Usage
reference_group()
set_reference_group(group)
Arguments
- group
The group.
Value
reference_group() returns the active label or NULL.
set_reference_group() returns the previous value invisibly.
Examples
old <- set_reference_group("Healthy controls")
reference_group()
#> [1] "Healthy controls"
set_reference_group(old)
