n_participants_per_age_group: Count participants per age group
Description
Internal helper used by contact_matrix() to build its per-age-group
participant counts. A thin wrapper around n_participants_per_group()
with the default age-only grouping.
Usage
n_participants_per_age_group(participants)
Value
a long data.table with columns age.group, participants,
proportion
Arguments
- participants
the participants data.table