fastR (version 0.10.3)

tirewear: Estimating tirewear

Description

Treadwear is estimated by two methods: weight loss and groove wear.

Format

A data frame with 16 observations on the following 2 variables.

• weight estimated wear (1000's of miles) base on weight loss

• groove estimated wear (1000's of miles) based on groove wear

References

R. D. Stichler, G. G. Richey, and J. Mandel, "Measurement of Treadware of Commercial Tires", Rubber Age, 73:2 (May 1953).

Examples

# NOT RUN {
data(tirewear)
xyplot(weight ~ groove, data=tirewear)

# }