possum.txt

possum                                          R Documentation

possum

Description:

     Data representing possums in Australia and New Guinea. This is a
     copy of the data set by the same name in the ‘DAAG’ package,
     however, the data set included here includes fewer variables.

Usage:

     possum <- read.csv("https://raw.githubusercontent.com/roualdes/data/master/possum.csv")

Format:

     A data frame with 104 observations on the following 8 variables.

     ‘site’ The site number where the possum was trapped.

     ‘pop’ Population, either ‘Vic’ (Victoria) or ‘other’ (New South
          Wales or Queensland).

     ‘sex’ Gender, either ‘m’ (male) or ‘f’ (female).

     ‘age’ Age.

     ‘headL’ Head length, in mm.

     ‘skullW’ Skull width, in mm.

     ‘totalL’ Total length, in cm.

     ‘tailL’ Tail length, in cm.

Source:

     Lindenmayer, D. B., Viggers, K. L., Cunningham, R. B., and
     Donnelly, C. F. 1995. Morphological variation among columns of the
     mountain brushtail possum, Trichosurus caninus Ogilby
     (Phalangeridae: Marsupiala). Australian Journal of Zoology 43:
     449-458.

References:

     < http://www.openintro.org/>

Examples:

     data(possum)
     par(mfrow=1:2)
     plot(possum$headL, possum$skullW)
     densityPlot(possum$totalL, possum$sex, key=c('f','m'),
             xlab='total length (cm)')
     legend('topright', col=c('black', 'red'), lty=1:2, legend=c('f', 'm'))