bgvals {AIGIS}R Documentation

A data frame containing values of interest for CA block groups

Description

A dataframe that contains both raw values from the original US Census summary file 3 for California, as well as two estimated values. Data is at the block group level. Identifying info about the block group of row ‘i’ can be identified by referencing polytobg[polytobg[,1]==i,].

Usage

data(bgvals)

Format

A data frame with 22133 observations on the following 9 variables.

h.str
Estimated number of housing structures in the block group.
agg.val
Estimated total housing value inside the block group.
pop
Total population.
h.tot
Total number of housing units.
h.vac
Total number of vacant housing units.
h.occ
Total number of occupied housing units.
h.oo
Total number of owner occupied housing units.
h.ro
Total number of renter occupied housing units.
oo.val
Total reported value of owner-occupied housing units.

Details

The estimated values for the column ‘h.str’ were calculated as follows: Census tables provided data on number of housing units by units contained in structure. These numbers were weighted by the inverse of units in structure to arrive at a total estimate of housing values. The column ‘agg.val’ was the sum of census-provided data on owner occupied housing values, with an estimate for aggregate rental housing values. Rental housing values were estimated by assuming equal value as owner-occupied units, normalized by housing units per structure.

Source

Census 2000 Summary File 3: http://factfinder.census.gov/servlet/DatasetMainPageServlet?_program=DEC&_submenuId=datasets_1&_lang=en

Examples

data(bgvals)

[Package AIGIS version 1.0 Index]