Function reference • CoC Data

Shapefile Processing
`read_raw_coc_shapefile()`	Read in original CoC shapefile
CoC Crosswalk Creation
`build_county_crosswalk()`	Creates the county to CoC crosswalk
`build_tract_crosswalk()`	Creates the tract to CoC crosswalk
`match_tracts_to_cocs()`	Match Census Tracts to CoCs
`fetch_tract_data()`	Gets ACS data from the Census API
`get_shapefiles()`	Read in CoC shapefiles
`get_pre_2013_shapefiles()`	Fetches pre-2013 CoC shapefiles
`build_coc_list()`	Build list of CoCs
`build_coc_populations()`	CoC populations and poverty rates
`get_coc_categories()`	Creates a table of urban/rural CoC categories
PiT Counts
`build_pit_rates()`	Calculate homelessness rates by CoC
`get_long_pit_data()`	Reshapes the PIT count data to long form
`get_pit_years()`	Parse the years covered by the PIT counts
`parse_pit_year()`	Read and clean raw PIT count data
Renter Population Share
`build_county_renter_share()` `build_coc_renter_shares()`	Calculates the share of renters in each CoC
HUD FMRs (Fair Market Rents)
`process_split_county_fmr()` `build_coc_fmr()`	Builds CoC level FMRs
`process_fmr()`	Read and process raw FMR data
`get_states_with_split_counties()` `get_acs_county_sub()`	Fetches ACS renter household counts
Zillow Rent Index
`build_coc_zillow_rent()`	Creates a CoC level Zillow rent index
`build_tract_zillow_rent()`	Creates a census tract level Zillow rent index
`process_tract_to_zip()`	Reads and processes tract to zip code crosswalk
`process_zillow_data()`	Reads and processes raw Zillow rent index data
Rent burden
`build_coc_rent_burden()`	CoC-level shares of rent burdened households
Rental Vacancy Rate
`build_coc_vacancy_rates()`	CoC housing vacancy rents
Unemployment rate
`build_coc_unemployment()`	CoC-level unemployment rates
`fetch_unemployment()`	Fetch raw BLS unemployment rates
Public Program Utilization
`build_coc_public_program_use()`	CoC public program utilization rates
`fetch_public_program_use()`	Fetch ACS public program use data
Evictions
`build_coc_evictions()`	Creates eviction data
Income
`build_coc_income()`	Creates CoC average median income measures
Helpers
`fetch_acs()`	Fetches ACS table data from the Census Bureau API
`write_dataset()`	Write combined dataset to disk
`build_display_map()`	Moves Alaska and Hawaii for compact 50 state map

Reference

Shapefile Processing

CoC Crosswalk Creation

PiT Counts

Renter Population Share

HUD FMRs (Fair Market Rents)

Zillow Rent Index

Rent burden

Rental Vacancy Rate

Unemployment rate

Public Program Utilization

Evictions

Income

Helpers