MAdata {MapGAM}

Synthetic Case-Control Data for Massachusetts

Description

90 cases and 910 controls with random smoking covarate values and random geolocations within Massachusetts, geocoded on a Lambert projection (in meters). MAmap is a map of Massachusetts using the same projection.

Usage

data(MAdata)

Format

A data frame with 1000 observations on the following 6 variables.

Case

0 for controls, 1 for cases.

Xcoord

projected X coordinate.

Ycoord

projected Y coordinate.

Smoking

0 for nonsmokers, 1 for smokers.

Mercury

continuous variable for mercury exposure.

Selenium

continuous variable for selenium exposure.

Details

Lambert conformal conic projection for the State of Massachusetts, using standard parallels 41.71666667 and 42.68333333. The latitude of origin is 41.0, the central meridian is -71.5, and the projection units are meters (False Easting: 200000 m; False Northing: 750000 m).

Source

Simulated data provided by package authors

Examples

data(MAdata)
summary(MAdata)
attach(MAdata)
# map participants, cases in red and controls in black
plot(Xcoord,Ycoord,col=Case+1)