melanoma               package:lattice               R Documentation

Melanoma skin cancer incidence

Description:

     These data from the Connecticut Tumor Registry present
     age-adjusted numbers of melanoma skin-cancer incidences per
     100,000 people in Connectict for the years from 1936 to 1972.

Usage:

     melanoma

Format:

     A data frame with 37 observations on the following 2 variables.

     year Years 1936 to 1972.

     incidence Rate of melanoma cancer per 100,000 population.

Note:

     This dataset is not related to the 'melanoma' dataset in the
     *boot* package with the same name.

     The S-PLUS 6.2 help for the melanoma data says that the incidence
     rate is per _million_, but this is not consistent with data found
     at the National Cancer Institute (<URL: http://www.nci.nih.gov>).

Author(s):

     Documentation contributed by Kevin Wright.

Source:

     Houghton, A., E. W. Munster, and M. V. Viola.  (1978).  Increased
     Incidence of Malignant Melanoma After Peaks of Sunspot Activity.
     _The Lancet_, *8*, 759-760.

References:

     Cleveland, William S. (1993). _Visualizing Data_.  Hobart Press,
     Summit, New Jersey.

Examples:

     # Time-series plot.  Figure 3.64 from Cleveland.
     xyplot(incidence ~ year,
       data = melanoma,
             aspect = "xy",
             panel = function(x, y)
                     panel.xyplot(x, y, type="o", pch = 16),
             ylim = c(0, 6),
             xlab = "Year",
             ylab = "Incidence")

