bgvals {AIGIS} | R Documentation |
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,]
.
data(bgvals)
A data frame with 22133 observations on the following 9 variables.
h.str
agg.val
pop
h.tot
h.vac
h.occ
h.oo
h.ro
oo.val
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.
Census 2000 Summary File 3: http://factfinder.census.gov/servlet/DatasetMainPageServlet?_program=DEC&_submenuId=datasets_1&_lang=en
data(bgvals)