pillbug {isdals} | R Documentation |
Effect of stimuli on pillbugs
Description
An experiment on the effect of different stimuli was carried out with 60 pillbugs. The bugs were split into three groups: 20 bugs were exposed to strong light, 20 bugs were exposed to moisture, and 20 bugs were used as controls. For each bug it was registered how many seconds it used to move six inches.
Usage
data(pillbug)
Format
A data frame with 60 observations on the following 2 variables.
time
number of seconds it took the pillbug to move six inches
group
treatment. A factor with levels
Control
Light
Moisture
Source
Samuels and Witmer (2003). Statistics for the Life Sciences (3rd ed.). Pearson Education, Inc., New Jersey.
Examples
data(pillbug)
[Package isdals version 3.0.1 Index]