pafa {mlbstats}

Calculates park factor

Description

Computes the runs a team scores at home versus away (it is often used in other metrics, e.g., adjusted era (ERA+) for pitchers; see "aera")

Usage

pafa(home_rs, home_ra, home_r, road_rs, road_ra, road_r)

Arguments

home_rs

Number of pitcher's team runs scored at home park

home_ra

Number of pitcher's team runs allowed at home park

home_r

Total number of runs scored at home park

road_rs

Number of pitcher's team runs scored at away park

road_ra

Number of pitcher's team runs allowed at away park

road_r

Total number of runs scored at away park

Value

pafa

Examples

pafa(5, 6, 11, 4, 8, 12) # for a pair of games (one home, one away)