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better EMA

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Miha Kralj
2022-11-21 11:33:53 -08:00
parent f393ec336d
commit ae168ee345
9 changed files with 545 additions and 107 deletions
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Tests/Series/Update.cs
+1 -1
View File
@@ -105,7 +105,7 @@ public class Update {
Assert.Equal(lastCalc, QL.Last()); // same data
}
[Fact] public void COVAR() {
COVAR_Series QL = new(d1: bars.High, d2: bars.Low, period: period);
COVAR_Series QL = new(d1: bars.High, d2: bars.Low, period);
var lastData = bars.Last();
var lastCalc = QL.Last();
int lastLen = QL.Count;
Tests/Validations/Skender_Stock.cs
+258 -76
View File
@@ -11,9 +11,9 @@ public class Skender_Stock {
private readonly IEnumerable<Quote> quotes;
public Skender_Stock() {
bars = new(Bars: 5000, Volatility: 0.8, Drift: 0.0);
period = rnd.Next(28) + 3;
digits = 4; //minimizing rounding errors in type conversions
bars = new(Bars: 10000, Volatility: 0.8, Drift: 0.0);
period = rnd.Next(30) + 5;
digits = 2; //minimizing rounding errors in type conversions
quotes = bars.Select(q => new Quote {
Date = q.t,
@@ -25,180 +25,362 @@ public class Skender_Stock {
});
}
[Fact] public void ADL() {
// TODO: check precision of ADL()
ADL_Series QL = new(bars, false);
var SK = quotes.GetAdl();
Assert.Equal(Math.Round(SK.Last().Adl!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetAdl().Select(i => i.Adl);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1)!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void ALMA() {
ALMA_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetAlma(period);
Assert.Equal(Math.Round((double)SK.Last().Alma!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetAlma(period).Select(i => i.Alma.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void ATR() {
ATR_Series QL = new(bars, period, false);
var SK = quotes.GetAtr(period);
Assert.Equal(Math.Round((double)SK.Last().Atr!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetAtr(period).Select(i => i.Atr.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void ATRP() {
ATRP_Series QL = new(bars, period, false);
var SK = quotes.GetAtr(period);
Assert.Equal(Math.Round((double)SK.Last().Atrp!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetAtr(period).Select(i => i.Atrp.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void BBANDS() {
BBANDS_Series QL = new(bars.Close, period, 2.0, useNaN: false);
var SK = quotes.GetBollingerBands(period, 2.0);
Assert.Equal(Math.Round((double)SK.Last().Sma!, digits: digits), Math.Round(QL.Mid.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().UpperBand!, digits: digits), Math.Round(QL.Upper.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().LowerBand!, digits: digits), Math.Round(QL.Lower.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().Width!, digits: digits), Math.Round(QL.Bandwidth.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().PercentB!, digits: digits), Math.Round(QL.PercentB.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().ZScore!, digits: digits), Math.Round(QL.Zscore.Last().v, digits: digits));
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL.Mid[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1).Sma!.Value, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Upper[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).UpperBand!.Value, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Lower[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).LowerBand!.Value, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Bandwidth[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).Width!.Value, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.PercentB[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).PercentB!.Value, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Zscore[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).ZScore!.Value, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void CCI() {
CCI_Series QL = new(bars, period, false);
var SK = quotes.GetCci(period);
Assert.Equal(Math.Round((double)SK.Last().Cci!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetCci(period).Select(i => i.Cci.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void CORR() {
CORR_Series QL = new(bars.High, bars.Low, period, false);
var SK = quotes.Use(CandlePart.High).GetCorrelation(quotes.Use(CandlePart.Low), period);
Assert.Equal(Math.Round((double)SK.Last().Correlation!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.Use(CandlePart.High).GetCorrelation(quotes.Use(CandlePart.Low), period).Select(i => i.Correlation.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void COVAR() {
COVAR_Series QL = new(bars.High, bars.Low, period, false);
var SK = quotes.Use(CandlePart.High).GetCorrelation(quotes.Use(CandlePart.Low), period);
Assert.Equal(Math.Round((double)SK.Last().Covariance!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.Use(CandlePart.High).GetCorrelation(quotes.Use(CandlePart.Low), period).Select(i => i.Covariance.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void DEMA() {
DEMA_Series QL = new(bars.Close, period, false);
var SK = quotes.GetDema(period);
Assert.Equal(Math.Round((double)SK.Last().Dema!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetDema(period).Select(i => i.Dema.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void EMA() {
EMA_Series QL = new(bars.Close, period, false);
var SK = quotes.GetEma(period);
Assert.Equal(Math.Round((double)SK.Last().Ema!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetEma(period).Select(i => i.Ema.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void HL2() {
TSeries QL = bars.HL2;
var SK = quotes.GetBaseQuote(CandlePart.HL2);
Assert.Equal(Math.Round(SK.Last().Value!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetBaseQuote(CandlePart.HL2).Select(i => i.Value);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1)!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void HLC3() {
TSeries QL = bars.HLC3;
var SK = quotes.GetBaseQuote(CandlePart.HLC3);
Assert.Equal(Math.Round(SK.Last().Value!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetBaseQuote(CandlePart.HLC3).Select(i => i.Value);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1)!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void HMA() {
HMA_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetHma(period);
Assert.Equal(Math.Round((double)SK.Last().Hma!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetHma(period).Select(i => i.Hma.Null2NaN()!);
for (int i = QL.Length; i > period+3; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void KAMA() {
// TODO: check precision of KAMA()
KAMA_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetKama(period);
Assert.Equal(Math.Round((double)SK.Last().Kama!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetKama(period).Select(i => i.Kama.Null2NaN()!);
for (int i = QL.Length; i > 500; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void LINREG() {
LINREG_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetSlope(period);
Assert.Equal(Math.Round((double)SK.Last().Slope!, digits: digits), Math.Round(QL.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().Intercept!, digits: digits), Math.Round(QL.Intercept.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().RSquared!, digits: digits), Math.Round(QL.RSquared.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().StdDev!, digits: digits), Math.Round(QL.StdDev.Last().v, digits: digits));
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1).Slope!, digits: digits) ;
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Intercept[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).Intercept!, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.RSquared[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).RSquared!, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.StdDev[i - 1].v, digits: digits);
SK_item = Math.Round((double)SK.ElementAt(i - 1).StdDev!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void MACD() {
MACD_Series QL = new(bars.Close, 26, 12, 9, useNaN: false);
var SK = quotes.GetMacd(12, 26, 9);
Assert.Equal(Math.Round((double)SK.Last().Macd!, digits: digits), Math.Round(QL.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().Signal!, digits: digits), Math.Round(QL.Signal.Last().v, digits: digits));
for (int i = QL.Length; i > 500; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1).Macd.Null2NaN()!, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Signal[i - 1].v, digits: digits);
SK_item = Math.Round(SK.ElementAt(i - 1).Signal.Null2NaN()!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void MAD() {
MAD_Series QL = new(bars.Close, period, false);
var SK = quotes.GetSmaAnalysis(period);
Assert.Equal(Math.Round((double)SK.Last().Mad!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetSmaAnalysis(period).Select(i => i.Mad.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void MAMA() {
MAMA_Series QL = new(bars.HL2, fastlimit: 0.5, slowlimit: 0.05);
var SK = quotes.GetMama(fastLimit: 0.5, slowLimit: 0.05);
Assert.Equal(Math.Round((double)SK.Last().Mama!, digits: digits), Math.Round(QL.Last().v, digits: digits));
Assert.Equal(Math.Round((double)SK.Last().Fama!, digits: digits), Math.Round(QL.Fama.Last().v, digits: digits));
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1).Mama.Null2NaN()!, digits: digits);
Assert.Equal(SK_item!, QL_item);
QL_item = Math.Round(QL.Fama[i - 1].v, digits: digits);
SK_item = Math.Round(SK.ElementAt(i - 1).Fama.Null2NaN()!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void MAPE() {
MAPE_Series QL = new(bars.Close, period, false);
var SK = quotes.GetSmaAnalysis(period);
Assert.Equal(Math.Round((double)SK.Last().Mape!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetSmaAnalysis(period).Select(i => i.Mape.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void MSE() {
MSE_Series QL = new(bars.Close, period, false);
var SK = quotes.GetSmaAnalysis(period);
Assert.Equal(Math.Round((double)SK.Last().Mse!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetSmaAnalysis(period).Select(i => i.Mse.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void OBV() {
OBV_Series QL = new(bars, period, false);
var SK = quotes.GetObv(period);
var SK = quotes.GetObv(period).Select(i => i.Obv!);
// adding volume[0] to OBV to pass the test and keep compatibility with TA-LIB
Assert.Equal(Math.Round(SK.Last().Obv! + (double)quotes.First().Volume!, digits: digits), Math.Round(QL.Last().v, digits: digits));
Assert.Equal(Math.Round(SK.Last()! + (double)quotes.First().Volume!, digits: digits), Math.Round(QL.Last().v, digits: digits));
}
[Fact] public void OC2() {
TSeries QL = bars.OC2;
var SK = quotes.GetBaseQuote(CandlePart.OC2);
Assert.Equal(Math.Round(SK.Last().Value!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetBaseQuote(CandlePart.OC2).Select(i => i.Value);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1)!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void OHL3() {
TSeries QL = bars.OHL3;
var SK = quotes.GetBaseQuote(CandlePart.OHL3);
Assert.Equal(Math.Round(SK.Last().Value!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetBaseQuote(CandlePart.OHL3).Select(i => i.Value);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1)!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void OHLC4() {
TSeries QL = bars.OHLC4;
var SK = quotes.GetBaseQuote(CandlePart.OHLC4);
Assert.Equal(Math.Round(SK.Last().Value!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetBaseQuote(CandlePart.OHLC4).Select(i => i.Value);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round((double)SK.ElementAt(i - 1)!, digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void RSI() {
RSI_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetRsi(period);
Assert.Equal(Math.Round((double)SK.Last().Rsi!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetRsi(period).Select(i => i.Rsi.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void SDEV() {
SDEV_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetStdDev(period);
Assert.Equal(Math.Round((double)SK.Last().StdDev!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetStdDev(period).Select(i => i.StdDev.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void SMA() {
SMA_Series QL = new(bars.Close, period, false);
var SK = quotes.GetSma(period);
Assert.Equal(Math.Round((double)SK.Last().Sma!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetSma(period).Select(i => i.Sma.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void SMMA() {
SMMA_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetSmma(period);
Assert.Equal(Math.Round((double)SK.Last().Smma!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetSmma(period).Select(i => i.Smma.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void T3() {
T3_Series QL = new(source: bars.Close, period, vfactor: 0.7, false);
var SK = quotes.GetT3(lookbackPeriods: period, volumeFactor: 0.7);
Assert.Equal(Math.Round((double)SK.Last().T3!, digits: digits), Math.Round(QL.Last().v, digits: digits));
T3_Series QL = new(source: bars.Close, period: period, vfactor: 0.7, false);
var SK = quotes.GetT3(lookbackPeriods: period, volumeFactor: 0.7).Select(i => i.T3.Null2NaN()!);
for (int i = QL.Length; i > period*15 ; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void TEMA() {
TEMA_Series QL = new(bars.Close, period, false);
var SK = quotes.GetTema(period);
Assert.Equal(Math.Round((double)SK.Last().Tema!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetTema(period).Select(i => i.Tema.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void TR() {
TR_Series QL = new(bars, useNaN: false);
var SK = quotes.GetTr();
Assert.Equal(Math.Round((double)SK.Last().Tr!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetTr().Select(i => i.Tr.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void WMA() {
WMA_Series QL = new(bars.Close, period, false);
var SK = quotes.GetWma(period);
Assert.Equal(Math.Round((double)SK.Last().Wma!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetWma(period).Select(i => i.Wma.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
[Fact] public void ZSCORE() {
ZSCORE_Series QL = new(bars.Close, period, useNaN: false);
var SK = quotes.GetStdDev(period);
Assert.Equal(Math.Round((double)SK.Last().ZScore!, digits: digits), Math.Round(QL.Last().v, digits: digits));
var SK = quotes.GetStdDev(period).Select(i => i.ZScore.Null2NaN()!);
for (int i = QL.Length; i > period; i--)
{
double QL_item = Math.Round(QL[i - 1].v, digits: digits);
double SK_item = Math.Round(SK.ElementAt(i - 1), digits: digits);
Assert.Equal(SK_item!, QL_item);
}
}
}