abd (version 0.1-22)

WalkingStickHeads: Walking Stick Head Width

Description

Two measures of head width (head.width) for each of 25 walking sticks (Timema cristinae).

Usage

data(WalkingStickHeads)

source

Nosil, P. and B.J. Crespi. 2006. Experimental evidence that predation promotes divergence in adaptive radiation. Proceedings of the National Academy of Sciences (USA) 103: 9090-9095.

References

http://www.sfu.ca/biology/faculty/crespi/pdfs/96-Nosil&Crespi2006PNAS.pdf

Examples

data(WalkingStickHeads)
aggregate(head.width~specimen, data=WalkingStickHeads, mean) -> WS
histogram(~head.width, WS)