*Data provided "as is," no warranties.*

**File Description**

Housing and neighborhood data for the city of Boston.

Files:

boston.txt: | Input ASCII file to create point shape file |

boston.shp shx dbf: | Point shape file |

Observations = 506

Variables = 23

**Source**

Data created from boston.c data frame in R's spdep package. Original source: http://lib.stat.cmu.edu/datasets/boston_corrected.txt

Variables and References: R spdep Manual (p. 15), available at http://cran.us.r-project.org

**References**

Harrison, David, and Daniel L. Rubinfeld. (1978). Hedonic Housing Prices and the Demand for Clean Air, *Journal of Environmental Economics and Management*, Volume 5, 81-
102. Original data.

Gilley, O.W., and R. Kelley Pace. (1996). On the Harrison and Rubinfeld Data, *Journal of Environmental Economics and Management*, 31, 403-405. Provided corrections and examined censoring.

Pace, R. Kelley, and O.W. Gilley. (1997). Using the Spatial Configuration of the Data to Improve Estimation, *Journal of the Real Estate Finance and Economics*, 14, 333-340.

**Notes**

In R, use library(MASS) and write.matrix (frame or matrix name, file="output file",sep=",") to write data frames or matrices to a file.

Variable | Description |
---|---|

ID | Sequential ID |

TOWN | A factor with levels given by town names |

TOWNNO | A numeric vector corresponding to TOWN |

TRACT | A numeric vector of tract ID numbers |

LON | A numeric vector of tract point longitudes in decimal degrees |

LAT | A numeric vector of tract point latitudes in decimal degrees |

X | X Coordinates (UTM Zone 19) |

Y | Y Coordinates (UTM Zone 19) |

MEDV | A numeric vector of median values of owner-occupied housing in USD 1000 |

CMEDV | A numeric vector of corrected median values of owner-occupied housing in USD 1000 |

CRIM | A numeric vector of per capita crime |

ZN | A numeric vector of proportions of residential land zoned for lots over 25000 sq. ft per town (constant for all Boston tracts) |

INDUS | A numeric vector of proportions of non-retail business acres per town (constant for all Boston tracts) |

CHAS | A factor with levels 1 if tract borders Charles River; 0 otherwise |

NOX | A numeric vector of nitric oxides concentration (parts per 10 million) per town |

RM | A numeric vector of average numbers of rooms per dwelling |

AGE | A numeric vector of proportions of owner-occupied units built prior to 1940 |

DIS | A numeric vector of weighted distances to five Boston employment centers |

RAD | A numeric vector of an index of accessibility to radial highways per town (constant for all Boston tracts) |

TAX | A numeric vector full-value property-tax rate per USD 10,000 per town (constant for all Boston tracts) |

PTRATIO | A numeric vector of pupil-teacher ratios per town (constant for all Boston tracts) |

B | A numeric vector of 1000*(Bk - 0.63)^2 where Bk is the proportion of blacks |

LSTAT | A numeric vector of percentage values of lower status population |

Prepared by Luc Anselin

UIUC-ACE Spatial Analysis Laboratory

Last updated June 3, 2004