assign_age_groups: Assign age groups in survey data

In socialmixr: Social Mixing Matrices for Infectious Disease Modelling

Assign age groups in survey data

Description

This function processes age data in a survey object. It imputes ages from ranges, handles missing values, and assigns age groups.

Usage

assign_age_groups(
  survey,
  age_limits = NULL,
  estimated_participant_age = c("mean", "sample", "missing"),
  estimated_contact_age = c("mean", "sample", "missing"),
  missing_participant_age = c("remove", "keep"),
  missing_contact_age = c("remove", "sample", "keep", "ignore")
)

Arguments

survey	a survey() object
age_limits	lower limits of the age groups over which to construct the matrix. Defaults to NULL. If NULL, age limits are inferred from participant and contact ages.
estimated_participant_age	if set to "mean" (default), people whose ages are given as a range (in columns named "..._est_min" and "..._est_max") but not exactly (in a column named "..._exact") will have their age set to the mid-point of the range; if set to "sample", the age will be sampled from the range; if set to "missing", age ranges will be treated as missing
estimated_contact_age	if set to "mean" (default), contacts whose ages are given as a range (in columns named "..._est_min" and "..._est_max") but not exactly (in a column named "..._exact") will have their age set to the mid-point of the range; if set to "sample", the age will be sampled from the range; if set to "missing", age ranges will be treated as missing
missing_participant_age	if set to "remove" (default), participants without age information are removed; if set to "keep", participants with missing age are kept and treated as a separate age group
missing_contact_age	if set to "remove" (default), participants that have contacts without age information are removed; if set to "sample", contacts without age information are sampled from all the contacts of participants of the same age group; if set to "keep", contacts with missing age are kept and treated as a separate age group; if set to "ignore", contact with missing age are ignored in the contact analysis

Value

The survey object with processed age data.

Examples

polymod_grouped <- assign_age_groups(polymod)
polymod_grouped
polymod_custom <- assign_age_groups(polymod, age_limits = c(0, 5, 10, 15))
polymod_custom

socialmixr documentation built on April 29, 2026, 9:07 a.m.