eraminus: ERA-

Description Usage Arguments Details Value Note Author(s) References See Also Examples

Description

ERA- is a park-adjusted version of ERA

Usage

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eraminus(ERA, ParkFactor, LeagueERA)

Arguments

ERA

Player ERA

ParkFactor

Park Factor

LeagueERA

League Average ERA

Details

League Average is set to 100 each season. Each point below or above 100 is one percentage point better or worse than league average.

Value

Returns a value equal to (ERA+(ERA-(ERA*(ParkFactor/100))))/(LeagueERA)*100

Note

Park Factors can be found in the references section

Author(s)

Peter Xenopoulos

References

http://www.fangraphs.com/library/pitching/era-fip-xfip/ http://www.fangraphs.com/guts.aspx?type=pf&teamid=0&season=2014

See Also

era,fipminus,xfipminus

Examples

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## The function is currently defined as
function (ERA, ParkFactor, LeagueERA) 
{
    eraminus <- (ERA + (ERA - (ERA * (ParkFactor/100))))/(LeagueERA) * 
        100
    return(eraminus)
  }

peterxeno/sabermetrics-package documentation built on May 25, 2019, 2:10 a.m.