best.times {UsingR}

Best track and field times by age and distance

Description

A dataset giving world records in track and field running events for various distances and different age groups.

Usage

data(best.times)

Format

A data frame with 113 observations on the following 6 variables.

Dist

Distance in meters (42195 is a marathon)

Name

Name of record holder

Date

Date of record

Time

Time in seconds

Time.1

Time as character

age

Age at time of record

Details

Age-graded race results allow competitors of different ages to compare their race performances. This data set allows one to see what the relationship is based on peak performances.

Source

The data came from http://www.personal.rdg.ac.uk/~snsgrubb/athletics/agegroups.html which included a calculator to compare results.

Examples

data(best.times)
attach(best.times)
by.dist = split(best.times,as.factor(Dist))
lm(scale(Time) ~ age, by.dist[['400']])
dists = names(by.dist)
lapply(dists, function(n) print(lm(scale(Time) ~ age, by.dist[[n]])))