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Make a postcode lookup for filling to most recent postcodes based on CHI

Source: R/fill_geographies.R
make_postcode_lookup.Rd

Make a postcode lookup for filling to most recent postcodes based on CHI

Usage

make_postcode_lookup(data)

Arguments

data

A data frame containing chi, postcode, and a date of last contact

Value

A lookup containing CHI numbers and their most recent postcodes