These data record the spatial positions of cases of laryngeal cancer in the North-West of England between 1974 and 1983, together with the positions of a number of lung cancer patients who were used as controls. The data have been adjusted to preserve anonymity.
The variables are:
||a west-east grid reference|
||a north-south grid reference|
||an indicator of laryngeal (1) or lung (2) cancer|
Source: Bailey & Gatrell (1995). Interactive Spatial Data Analysis. Longman Scientific and Technical, Harlow. A more extensive set of data is analysed in Kelsall & Diggle, kernel estimation of relative risk, Bernoulli 1, 3-16.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.