Adds age group marker to serosurvey

Adds age group marker to serosurvey

Usage

add_age_group_to_serosurvey(serosurvey)

Arguments

serosurvey

survey_year

Year in which the survey took place (only needed to plot time models)

age_min

Floor value of the average between age_min and age_max

age_max

The size of the sample

n_sample

Number of samples for each age group

n_seropositive

Number of positive samples for each age group

Value

serosurvey with additional column specifying age group marker defined as the mean floor between age_min and age_max