| NeanderthalBrains {abd} | R Documentation |
Cranial Capacity in Neanderthals and Modern Humans
Description
Brain size (lnbrain) and body mass (lnmass) in Neanderthals
and early modern humans (species).
Format
A data frame with 39 observations on the following 3 variables.
- ln.mass
log of body mass (kg)
- ln.brain
log of brain size
- species
a factor with levels
neanderthalrecent
Source
Ruff, C.B., E. Trinkaus, and T.W. Holliday. 1997. Body mass and encephalization in Pleistocene Homo. Nature 387: 173-176.
Examples
xyplot(ln.brain ~ ln.mass, data=NeanderthalBrains, groups=species)
[Package abd version 0.2-8 Index]