polytobg {AIGIS}R Documentation

Link CA block group polygons to block group data records

Description

Each row corresponds to a block group polygon, and contains information to identify the corresponding block group, by index in bgvals as well as Logical Record Number, County ID, Block, and Group number.

Usage

data(polytobg)

Format

A data frame with 22195 observations on the following 5 variables.

bg-index
The index in bgvals of the corresponding block group
LRN
The logical record number - a unique identifier from the summary file 3
county
A numeric county identifier
block
The block number
group
The group number within the block

References

US Census Summary File 3 Documentation http://www.census.gov/prod/cen2000/doc/sf3.pdf

Examples

data(polytobg)

[Package AIGIS version 1.0 Index]