private CalculatorStats ConvertOptionalParamsToNonNullable(TeamStats teamStats)
{
var calculatorStats = new CalculatorStats
{
Ab = teamStats.Ab ?? 0,
H = teamStats.H ?? 0,
X2b = teamStats.X2b ?? 0,
X3b = teamStats.X3b ?? 0,
Hr = teamStats.Hr ?? 0,
Bb = teamStats.Bb ?? 0,
So = teamStats.So ?? 0,
Hbp = teamStats.Hbp ?? 0,
Sf = teamStats.Sf ?? 0,
Ibb = 0,
Sh = 0
};
calculatorStats.Pa = CalulatePa(calculatorStats);
calculatorStats.Singles = CalculateSingles(calculatorStats);
calculatorStats.Obp = CalculateObp(calculatorStats);
calculatorStats.Slg = CalculateSlg(calculatorStats);
calculatorStats.KRate = CalculateKRate(calculatorStats);
calculatorStats.BbRate = CalculateBbRate(calculatorStats);
return(calculatorStats);
}
//BB% - Walk Percentage (http://www.fangraphs.com/library/offense/rate-stats/)
private double CalculateBbRate(CalculatorStats stats)
{
var numerator = (double)stats.Bb;
var denominator = stats.Pa;
double bbRate = SafeDivide.divideDouble(numerator, denominator);
return(Math.Round(bbRate, 3));
}
//SLG - Slugging Percentage
private double CalculateSlg(CalculatorStats stats)
{
var numerator = (double)stats.Singles + stats.X2b * 2 + stats.X3b * 3 + stats.Hr * 4;
var denominator = stats.Ab;
double slg = SafeDivide.divideDouble(numerator, denominator);
return(Math.Round(slg, 3));
}
//OBP - On Base Percentage (http://www.fangraphs.com/library/offense/obp/)
private double CalculateObp(CalculatorStats stats)
{
var numerator = (double)stats.H + stats.Bb + stats.Ibb;
var denominator = stats.Ab;
double obp = SafeDivide.divideDouble(numerator, denominator);
return(Math.Round(obp, 3));
}
//ISO - Isolated Power (http://www.fangraphs.com/library/offense/iso/)
private double CalculateIso(CalculatorStats stats)
{
var numerator = (double)stats.X2b + (2 * stats.X3b) + (3 * stats.Hr);
var denominator = stats.Ab;
double iso = SafeDivide.divideDouble(numerator, denominator);
return(Math.Round(iso, 3));
}
//BABIP - Batting Average On Balls In Play (http://www.fangraphs.com/library/offense/babip/)
private double CalculateBabip(CalculatorStats stats)
{
var numerator = (double)stats.H - stats.Hr;
var denominator = stats.Ab - stats.So - stats.Hr + stats.Sf;
double babip = SafeDivide.divideDouble(numerator, denominator);
return(Math.Round(babip, 3));
}
private CalculatorStats ConvertOptionalParamsToNonNullable(BattingPostStats battingStats)
{
var calculatorStats = new CalculatorStats
{
Ab = battingStats.Ab ?? 0,
H = battingStats.H ?? 0,
X2b = battingStats.X2b ?? 0,
X3b = battingStats.X3b ?? 0,
Hr = battingStats.Hr ?? 0,
Bb = battingStats.Bb ?? 0,
So = battingStats.So ?? 0,
Ibb = battingStats.Ibb ?? 0,
Hbp = battingStats.Hbp ?? 0,
Sh = battingStats.Sh ?? 0,
Sf = battingStats.Sf ?? 0
};
calculatorStats.Pa = CalulatePa(calculatorStats);
calculatorStats.Singles = CalculateSingles(calculatorStats);
calculatorStats.Obp = CalculateObp(calculatorStats);
calculatorStats.Slg = CalculateSlg(calculatorStats);
calculatorStats.KRate = CalculateKRate(calculatorStats);
calculatorStats.BbRate = CalculateBbRate(calculatorStats);
return(calculatorStats);
}
//OPS - On Base + Slugging (http://www.fangraphs.com/library/offense/ops/)
private double CalculateOps(CalculatorStats stats)
{
return(Math.Round(stats.Obp + stats.Slg, 3));
}
//AVG - Batting Average
private double CalculateAvg(CalculatorStats stats)
{
double avg = SafeDivide.divideDouble((double)stats.H, stats.Ab);
return(Math.Round(avg, 3));
}
//S - Singles
private int CalculateSingles(CalculatorStats stats)
{
return(stats.H - (stats.X2b + stats.X3b + stats.Hr));
}
//Pa - Plate Appearances
private int CalulatePa(CalculatorStats stats)
{
return(stats.Ab + stats.Bb + stats.Hbp + stats.Sf + stats.Sh);
}
