The dataset refers to an experiment carried out by some students of an Australian university.
Ants
Data frame with 48 observations on the following 5 variables
Bread
integer indicator for the kind of bread (1=rye, 2=wheatmeal, 3=multigrain, 4=white)
Filling
integer indicator for the kind of filling (1=vegemite, 2=peanut butter, 3=ham and pickles)
Butter
indicator for butter (1=butter, -1=no butter)
Ant_count
number of captured ants
Order
order of the experiment