Data from von Bortkiewicz (1898), given by Andrews & Herzberg (1985), on number of deaths by horse or mule kicks in 10 (of 14 reported) corps of the Prussian army. 4 corps were not considered by Fisher (1925) as they had a different organization. This data set is a popular subset of the VonBort data.

data("HorseKicks")

Format

A 1-way table giving the number of deaths in 200 corps-years. The variable and its levels are

NoNameLevels
1nDeaths0, 1, ..., 4

References

D. F. Andrews & A. M. Herzberg (1985), Data: A Collection of Problems from Many Fields for the Student and Research Worker. Springer-Verlag, New York, NY.

R. A. Fisher (1925), Statistical Methods for Research Workers. Oliver & Boyd, London.

L. von Bortkiewicz (1898), Das Gesetz der kleinen Zahlen. Teubner, Leipzig.

M. Friendly (2000), Visualizing Categorical Data. SAS Institute, Cary, NC.

Source

Michael Friendly (2000), Visualizing Categorical Data, page 18.

See also

Examples

data("HorseKicks")
gf <- goodfit(HorseKicks)
summary(gf)
#> 
#> 	 Goodness-of-fit test for poisson distribution
#> 
#>                        X^2 df  P(> X^2)
#> Likelihood Ratio 0.8682214  3 0.8330891
plot(gf)