VGAMdata (version 0.9-2)

prison.us: US Prison Data

Description

Number of prisoners in each North American state, and the populations of those states from years 1977 to 2010

Usage

data(prison.us)

source

The prisoner data was compiled from: Bureau of Justice Statistics, http://www.bjs.gov/index.cfm. Downloaded in September 2013 and formatted into R by J. T. Gray, [e-mail]. The population data was compiled from: United States Census Bureau, http://www.census.gov/popest/data. Downloaded in September 2013 by J. T. Gray.

Details

This is a data set of the number of prisoners in each American state and the populations of those states, from 1977 to 2010. The number of prisoners are taken from December 31st, while the populations are estimates taken from July 1st based on the previous Census, except for pop.1980, which uses exact census data from 1980/04/01. Warning: a scatterplot of US.pop shows a discontinuity around 2000.

Examples

summary(prison.us)
# This plot shows a discontinuity around 2000.
plot(US.pop / 1e6 ~ Year, prison.us, main = "US population (millions)",
     las = 1, type = "b", col = "blue")