The CoC level index is created by taking a weighted average of the census tract level Zillow rent index for the tracts in each CoC. The weights are the share of the CoC's population that are in each tract.
build_coc_zillow_rent(tract_rent, tract_to_coc)
tract_rent | A data frame with processed census tract level Zillow rent
index data created by |
---|---|
tract_to_coc | A data frame with a census tract to CoC crosswalk created
by |
A data frame with the CoC level Zillow rent index.
coc_number
: CoC number (character)
year
: year (integer)
coc_rent_zillow
: annual average Zillow rent index, NA for CoC
with no zip codes covered by the Zillow rent index (numeric)
coc_share_na_rent
: share of the CoC's population in zip codes not
covered by the Zillow rent index (numeric)
process_zillow_data()
for processing the raw Zillow rent index,
build_coc_zillow_rent()
for creating the CoC level Zillow rent index,
build_tract_crosswalk()
for creating the census tract to CoC crosswalk