Mandible lengths of male and female golden jackals

Mandible lengths (in mm) for male and female golden jackals (Canis aureus) from a collection of specimens in the British Museum of Natural History, London, UK.

data(jackal)

Format

A data frame with 20 observations on the following 2 variables.

Length

a numeric vector

Sex

a factor with levels Male Female

Source

The data were manually transcribed from Manly (2007).

References

Higham, C.F.W., Kijngam, A., and Manly, B.F.J. (1980) An analysis of prehistoric canid remains from Thailand. Journal of Archaeological Science 7:149-165.

Manly, B.F.J. (2007) Randomization, bootstrap and Monte Carlo methods in biology. Third Edition. Chapman & Hall/CRC, Boca Raton.

Examples

data(jackal)
str(jackal)
#> 'data.frame':	20 obs. of  2 variables:
#>  $ Length: num  120 107 110 116 114 111 113 117 114 112 ...
#>  $ Sex   : Factor w/ 2 levels "Male","Female": 1 1 1 1 1 1 1 1 1 1 ...

## boxplot of mandible length vs sex
plot(Length ~ Sex, data = jackal)