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))
[Package
SMPracticals version 1.3
Index]