best.times {UsingR} | R Documentation

## 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 comes from http://www.personal.rdg.ac.uk/~snsgrubb/athletics/agegroups.html which includes 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]])))

[Package UsingR version 0.1-4 Index]