Description

Game-by-game information for the 1998 season for Mark McGwire and Sammy Sosa. Data are a subset of the dataset provided in Simonoff (1998).

Usage

Format

A data frame containing 5 variables ("gameno", "month", "homeruns", "playerstatus", "player") and 326 observations.

gameno

an integer variable denoting the game number

month

a factor variable taking with levels "March" through "September" denoting the month of the game

homeruns

an integer vector denoting the number of homeruns hit in that game for that player

playerstatus

an integer vector equal to "0" if the player played in the game, and "1" if they did not.

player

an integer vector equal to "0" (McGwire) or "1" (Sosa)

Source

http://jse.amstat.org/v6n3/datasets.simonoff.html

References

Simonoff, Jeffrey S. 1998. “Move Over, Roger Maris: Breaking Baseball's Most Famous Record.” Journal of Statistics Education 6(3). Data used are a subset of the data in the article.