In 1846 the Donner party became stranded while crossing the Sierra
Nevada Mountains near Lake Tahoe. The data frame has the counts for
male and female survivors for six age groups.
Usage
ex1918
Arguments
Format
A data frame with 12 observations on the following 4 variables.
AgeCat
a numerical code corresponding to six age categories, with 1 = "15-19",
2 = "20-29", 3 = "30-39", 4 = "40-49", 5 = "50-59" and
6 = "60-69"
Sex
a factor with levels "female" and
"male"
Lived
number that lived
Died
number that died
References
Grayson, D.K. (1990). Donner Party Deaths: A Demographic Assessment,
Journal of Anthropological Research46: 223--242.