aggregate_anc.Rd
Take ANC and shape file paths or data files and aggregate art_current according to area hierarchy provided
aggregate_anc(anc, shape)
Aggregated ANC data containing columns area_id, area_name, area_level, area_level_label, sex,age_group, time_period, year, quarter, calendar_quarter, anc_clients, anc_known_neg, anc_already_art, anc_tested and anc_tested_pos, births_clients_ratio