| bike {SMPracticals} | R Documentation |
Bicycling Times
Description
The times taken to cycle up a hill, as function of the bicycle seat height, use of dynamo, and tyre pressure. 16 runs were made using a factorial design.
Usage
data(bike)Format
A data frame with 16 observations on the following 11 variables.
- day
Day of run
- run
Order of run
- seat
Seat height: -1 indicates 26 inches, 1 indicates 30 inches
- dynamo
Use of dynamo: -1 indicates not used
- tyre
Tyre pressure: -1 indicates 40 psi, 1 indicates 55 psi
- dayf
factor corresponding to day
- runf
factor corresponding to run
- seatf
factor corresponding to seat height
- dynamof
factor corresponding to use of dynamo
- tyref
factor corresponding to tyre pressure
- time
Run time (seconds)
Source
Box, G. E. P., Hunter, W. G. and Hunter, J. S. (1978) Statistics for Experimenters. New York: Wiley.
References
Davison, A. C. (2003) Statistical Models. Cambridge University Press. Page 357.
Examples
data(bike)
anova(lm(time~dayf+runf+seat+dynamo+tyre,data=bike))