public void AssignProperties(DataItem item, double level, TrendlineType type, DataItem previousItem)
{
this.item = item;
this.level = level;
this.type = type;
this.previousHit = previousItem;
}
//public TrendHit()
//{
// Guid = System.Guid.NewGuid();
//}
//public TrendHit(Trendline trendline) : this()
//{
// this.Trendline = trendline;
//}
public TrendHit(Trendline trendline, DataItem item, double crossPoint, TrendlineType type)
{
Guid = System.Guid.NewGuid();
this.Trendline = trendline;
this.Item = item;
this.CrossLevel = crossPoint;
this.Type = type;
}
public void runFull(IAnalyzer analyzer, DataItem item, AssetTimeframe atf)
{
this.atf = atf;
if (item == null) return;
if (item.Quotation == null) return;
runLeftSide(analyzer, item, atf);
}
public static DataItem generateDataItem(DateTime d, List<AnalysisType> types)
{
var item = new DataItem();
item.Asset = testAsset();
item.Timeframe = testTimeframe();
item.Date = d;
if (types.Contains(AnalysisType.Price)) item.Price = new Price() { Date = d };
if (types.Contains(AnalysisType.MACD)) item.Macd = new Macd() { Date = d };
if (types.Contains(AnalysisType.ADX)) item.Adx = new Adx() { Date = d };
return item;
}
public override void Analyze(DataItem[] items)
{
Debug.WriteLine("+;<TrendlineAnalyzer.Analyze>");
preAnalysisStaff(items);
//Add new trendlines to collection of trendlines.
var newTrendlines = getNewTrendlines();
this.activeTrendlines.AddRange(newTrendlines);
AnalyzeExistingTrendlines(items);
Debug.WriteLine("+;<///TrendlineAnalyzer.Analyze>");
}
public void runRightSide(IAnalyzer analyzer, DataItem item, AssetTimeframe atf)
{
this.atf = atf;
if (item == null) return;
if (item.Quotation == null) return;
//Calculate new values for peaks and troughs and apply them to the current item price.
//If any of this is changed, this price will have flag [IsChange] set to @true.
//This is the only thing that can be changed for items being only updated.
CheckForExtremum(item, ExtremumType.PeakByClose, false);
CheckForExtremum(item, ExtremumType.PeakByHigh, false);
CheckForExtremum(item, ExtremumType.TroughByClose, false);
CheckForExtremum(item, ExtremumType.TroughByLow, false);
CheckPriceGap(item);
}
public void Analyze(Trendline trendline, DataItem[] items, DataItem startItem)
{
var _startItem = (startItem == null ? trendline.InitialPoint.dataItem : startItem);
var _startIndex = _startItem.Index;
var currentHit = trendline.LastHit();
var currentBounce = trendline.LastBounce();
for (var i = _startIndex; i < items.Length; i++)
{
DataItem item = items[i];
TrendlineType type = trendline.CurrentType;
bool isExtremum = item.Price.IsExtremum(type);
double level = trendline.GetLevel(i);
////Get points for this dataItem.
//var points = item.Price.calculateTrendlineQuotationPoints(trendline);
if (isExtremum &&
trendline.IsMinimumForHit(item) &&
(currentHit == null || i - currentHit.Item.Index > 1))
{
//Hit.
trendline.setNewHit(item, level, type);
currentHit = trendline.currentHit;
currentBounce = trendline.currentBounce;
}
else
{
bool isBreakClose = ((item.Quotation.Close - trendline.GetLevel(i)) * trendline.CurrentType.GetFactor() > 0);
double ptBreakExtremum = calculatePointForBreakExtremum(trendline, item);
if (isBreakClose)
{
trendline.setNewBreak(item);
}
currentBounce.AddExtremumBreak(ptBreakExtremum);
currentBounce.AddQuotation(trendline, item);
}
}
}
public static DataItem FromDto(DataItemDto dto)
{
var item = new DataItem();
//item.AssetId = dto.AssetId;
item.Asset = Asset.GetAssetById(dto.AssetId);
item.Date = dto.PriceDate;
item.Timeframe = Timeframe.GetTimeframeByShortName(dto.Timeframe);
if (dto.QuotationId > 0)
{
item.Quotation = new Quotation
{
AssetId = dto.AssetId,
Date = dto.PriceDate,
Open = dto.OpenPrice,
Low = dto.LowPrice,
High = dto.HighPrice,
Close = dto.ClosePrice,
Volume = dto.Volume ?? 0,
Id = dto.QuotationId
};
}
if (dto.Price != null)
{
item.Price = Price.FromDto(dto.Price);
}
if (dto.Macd != null)
{
item.Macd = Macd.FromDto(dto.Macd);
}
if (dto.Adx != null)
{
item.Adx = Adx.FromDto(dto.Adx);
}
if (dto.Candlestick != null)
{
}
return item;
}
public void Compare(DataItem item, double level, TrendlineType type, DataItem previousItem)
{
/* Zresetuj obiekt przed rozpoczęciem nowych obliczeń. */
Reset();
AssignProperties(item, level, type, previousItem);
this.priceOverBreak = CalculatePriceOverBreak();
/* Oblicz różnicę w dystansie. Jeżeli świeca leży daleko od linii trendu
* jej punktacja wynosi 0 i funkcja od razu kończy działanie, żeby nie
* marnować zasobów.
* Świece leżące po złej stronie linii trendu otrzymują ocenę ujemną.
* Świece leżące blisko linii trendu otrzymują ocenę dodatnią. */
var priceScore = EvaluateScore();
/* Najpierw sprawdza czy notowanie jest przełamaniem linii trendu
* (czyli cena zamknięcia powyżej linii oporu lub poniżej linii wsparcia).
* Jeżeli tak, obliczenia nie są kontynuowane.*/
AnalyzeBreak(item, level, type);
if (IsBreak()) return;
}
protected bool CheckForExtremum(DataItem item, ExtremumType type, bool fromScratch)
{
Extremum extremum;
if (!fromScratch)
{
//Jeżeli analiza nie jest przeprowadzana od początku, sprawdzane jest czy dla tego DataItemu
//przypisany jest obieket ExtremumCalculator danego typu. Jeżeli nie, oznacza to, że już
//wcześniej został zdyskwalifikowany i nie ma sensu go sprawdzać.
extremum = item.Price.GetExtremumObject(type);
if (extremum == null) return false;
if (!extremum.IsOpen) return false;
//Sprawdź czy notowania późniejsze względem tego pozwalają uznać je za ekstremum.
var laterCounter = CountSerie(item.Index, type.IsPeak(), type.ByClose(), false);
if (laterCounter < MinRange && laterCounter < (analyzer.getDataItemsLength() - 1 - item.Index))
{
extremum.Cancelled = true;
item.Price.ApplyExtremumValue(type, null);
item.Price.IsUpdated = true;
return true;
}
else
{
extremum.LaterCounter = laterCounter;
}
}
else
{
//Wartości oparte na wcześniejszych notowaniach obliczane są tylko, jeżeli analiza wykonywana jest od zera.
var earlierCounter = CountSerie(item.Index, type.IsPeak(), type.ByClose(), true);
var laterCounter = CountSerie(item.Index, type.IsPeak(), type.ByClose(), false);
//Jeżeli liczba wcześniejszych lub późniejszych notowań gorszych od tego notowania nie osiągnęła
//minimalnego poziomu, to notowanie jest dyskwalifikowane jako ekstremum i nie ma sensu go dalej sprawdzać.
if (earlierCounter < MinRange) return false;
if (laterCounter < MinRange && laterCounter < (analyzer.getDataItemsLength() - 1 - item.Index)) return false;
extremum = new Extremum(item.Date, atf, type.IsPeak(), type.ByClose());
extremum.EarlierCounter = earlierCounter;
extremum.LaterCounter = laterCounter;
extremum.EarlierAmplitude = FindEarlierPriceAmplitude(type, item, getCurrentExtremum(type));
extremum.EarlierChange1 = GetPriceChange(item, extremum, true, 1);
extremum.EarlierChange2 = GetPriceChange(item, extremum, true, 2);
extremum.EarlierChange3 = GetPriceChange(item, extremum, true, 3);
extremum.EarlierChange5 = GetPriceChange(item, extremum, true, 5);
extremum.EarlierChange10 = GetPriceChange(item, extremum, true, 10);
extremum.Volatility = item.Quotation.Volatility();
//Calculate [LaterAmplitude] for previous extremum.
var prevExtremumDataItem = getCurrentExtremum(type);
if (prevExtremumDataItem != null)
{
var prevExtremum = prevExtremumDataItem.Extremum(type);
if (prevExtremum != null)
{
var laterAmplitude = FindLaterPriceAmplitude(type, prevExtremumDataItem, item);
prevExtremum.LaterAmplitude = laterAmplitude;
prevExtremumDataItem.Price.IsUpdated = true;
}
}
}
//Właściwie, to już wcześniej zostało zapewnione, że do tego miejsca wykonanie programu dotrze
//tylko, jeżeli extremum nie jest puste, ale mimo to kompilator nie przepuszcza bez takiego warunku tutaj.
if (extremum != null)
{
//extremum.LaterAmplitude = FindPriceAmplitude(item, extremum, false);
if (extremum.LaterChange1 == null) extremum.LaterChange1 = GetPriceChange(item, extremum, false, 1);
if (extremum.LaterChange2 == null) extremum.LaterChange2 = GetPriceChange(item, extremum, false, 2);
if (extremum.LaterChange3 == null) extremum.LaterChange3 = GetPriceChange(item, extremum, false, 3);
if (extremum.LaterChange5 == null) extremum.LaterChange5 = GetPriceChange(item, extremum, false, 5);
if (extremum.LaterChange10 == null) extremum.LaterChange10 = GetPriceChange(item, extremum, false, 10);
extremum.IsOpen = (item.Index + extremum.LaterCounter == analyzer.getDataItemsLength() - 1) || quotationsLeft(item) < 10;
if (extremum.IsConfirmed())
{
setCurrentExtremum(type, item);
}
item.Price.ApplyExtremumValue(type, extremum);
item.Price.IsUpdated = true;
}
return true;
}
public void LoadDataSets(DataItem[] items)
{
Items = items;
Items.AppendIndexNumbers();
}
private double EvaluatePriceDistance(DataItem item)
{
return 0;
}
private void setCurrentExtremum(ExtremumType type, DataItem item)
{
currentExtrema[type] = item;
}
public void runRightSide(IAnalyzer analyzer, DataItem item, AssetTimeframe atf)
{
}
private TrendBreak getTrendBreakIfExists(Trendline trendline, DataItem item)
{
return null;
}
public override void Analyze(DataItem[] items)
{
var x = "Działa";
}
protected double? GetPriceChange(DataItem item, Extremum extremum, bool earlier, int counter)
{
if (!earlier && quotationsLeft(item) < counter) return null;
var index = earlier ?
Math.Max(0, item.Index - counter) :
Math.Min(item.Index + counter, analyzer.getDataItemsLength() - 1);
double comparedValue = analyzer.getDataItem(index).Quotation.ProperValue(extremum.Type);
double baseValue = item.Quotation.ProperValue(extremum.Type);
double difference = (baseValue - comparedValue) / Math.Max(comparedValue, baseValue);
return difference * (extremum.Type.IsPeak() ? 1 : -1);
}
public ValuePoint(DataItem dataItem, double value)
{
this.dataItem = dataItem;
this.value = value;
}
protected double FindEarlierPriceAmplitude(ExtremumType type, DataItem item, DataItem prevExtremum)
{
int startIndex;
int endIndex;
startIndex = (prevExtremum == null ? 0 : prevExtremum.Index);
endIndex = item.Index - 1;
IEnumerable<DataItem> items = analyzer.getDataItems();
var itemsRange = items.Where(i => i.Index >= startIndex && i.Index <= endIndex);
if (itemsRange.Count() == 0) return 0;
double oppositeValue = (type.IsPeak() ?
itemsRange.Min(i => i.Quotation.Low) :
itemsRange.Max(i => i.Quotation.High));
double baseValue = item.Quotation.ProperValue(type);
return Math.Abs(oppositeValue - baseValue) / Math.Max(oppositeValue, baseValue);
}
public void if_quotationService_returns_empty_array_of_data_items_Run_returns_false()
{
var mockQuotationService = UnitTestTools.mockedQuotationService();
DataItem[] items = new DataItem[] { };
mockQuotationService.Setup(q => q.fetchData(It.IsAny<Dictionary<AnalysisType, IAnalyzer>>())).Returns(items);
Asset asset = new Asset(1, "USD");
Timeframe timeframe = Timeframe.GetTimeframe(TimeframeSymbol.M15);
ProcessService service = new ProcessService(asset, timeframe);
AnalysisType[] types = new AnalysisType[] { AnalysisType.Price };
service.Setup(types);
Assert.IsFalse(service.Run(true));
}
public void Compare(DataItem item, double level, TrendlineType type, DataItem previousItem)
{
}
public virtual void Analyze(DataItem[] items)
{
//Create price processor (unless it is already loaded).
if (processor == null) processor = getProcessor();
//Save [items] array for future reference.
this.items = items.ToArray();
int indexAnalysisStart = 0;
int indexLastCalculation = -1;
//Calculate required index numbers.
if (LastCalculationDate != null){
DateTime ldc = ((DateTime)LastCalculationDate).Proper(AssetTimeframe.timeframe.Symbol);
DateTime lastRequiredForRightOnlyAnalysis = ldc.addTimeUnits(AssetTimeframe.timeframe.Symbol, -ItemsForAnalysis);
indexAnalysisStart = findItemIndexByDate(items, lastRequiredForRightOnlyAnalysis);
indexLastCalculation = findItemIndexByDate(items, ldc);
}
//Only right analysis.
for (var i = Math.Max(indexAnalysisStart, 0) ; i <= indexLastCalculation; i++)
{
processor.runRightSide(this, items[i], AssetTimeframe);
}
//Complete analysis.
for (var i = indexLastCalculation + 1; i < items.Length; i++)
{
processor.runFull(this, items[i], AssetTimeframe);
}
LastCalculationDate = items[items.Length - 1].Date;
//Save info about analysis to Analysis object.
//analysis.AnalysisStart =
}
public override void Analyze(DataItem[] items)
{
}
//private bool LaterQuotationsExists(int index)
//{
// for (var i = index; i < analyzer.getDataItemsLength(); i++)
// {
// DataItem item = analyzer.getDataItem(i);
// if (item.Price.IsComplete) return true;
// }
// return false;
//}
private void CheckPriceGap(DataItem item)
{
//If [PriceGap] is already calculated, no need to do it again.
if (item.Price.PriceGap != 0) return;
//It is impossible to calculate price gap for the first and last item.
if (item.Index == 0) return;
if (item.Index == analyzer.getDataItemsLength() - 1) return;
var previousItem = analyzer.getDataItem(item.Index - 1);
var nextItem = analyzer.getDataItem(item.Index + 1);
if (previousItem.Quotation.High < nextItem.Quotation.Low)
{
item.Price.PriceGap = 100 * ((nextItem.Quotation.Low - previousItem.Quotation.High) / item.Quotation.Close);
item.Price.IsUpdated = true;
}
else if (previousItem.Quotation.Low > nextItem.Quotation.High)
{
item.Price.PriceGap = 100 * ((nextItem.Quotation.High - previousItem.Quotation.Low) / item.Quotation.Close);
item.Price.IsUpdated = true;
}
}
public void runFull(IAnalyzer analyzer, DataItem item, AssetTimeframe atf)
{
}
/*
* Funkcja zwraca liczbę notowań, które zostały do końca zestawu.
*/
private int quotationsLeft(DataItem item)
{
return analyzer.getDataItemsLength() - item.Index - 1;
}
private double calculatePointForBreakExtremum(Trendline trendline, DataItem item)
{
return 0;
}
private void runLeftSide(IAnalyzer analyzer, DataItem item, AssetTimeframe atf)
{
//Check if quotation is missing (but only in the middle of not-missing quotations,
//because missing quotations at the end of array was excluded one line above).
//If it is copy data from the previous quotation.
if (!item.Quotation.IsComplete())
{
var previousQuotation = (item.Index > 0 ? analyzer.getDataItem(item.Index - 1).Quotation : null);
if (previousQuotation != null)
{
item.Quotation.CompleteMissing(previousQuotation);
//_dataService.UpdateQuotation(item.Quotation, Symbol);
}
}
//Ensure that [Price] object is appended to this [DataItem].
item.Price = new Price();
item.Price.Date = item.Date;
if (item.Index > 0) item.Price.CloseDelta = CalculateDeltaClosePrice(item.Quotation.Close, item.Index);
item.Price.Direction2D = CalculateDirection2D(item.Index);
item.Price.Direction3D = CalculateDirection3D(item.Index);
//Calculate new values for peaks and troughs and apply them to the current item price.
//If any of this is changed, this price will have flag [IsChange] set to @true.
//This is the only thing that can be changed for items being only updated.
CheckForExtremum(item, ExtremumType.PeakByClose, true);
CheckForExtremum(item, ExtremumType.PeakByHigh, true);
CheckForExtremum(item, ExtremumType.TroughByClose, true);
CheckForExtremum(item, ExtremumType.TroughByLow, true);
CheckPriceGap(item);
}
protected double FindLaterPriceAmplitude(ExtremumType type, DataItem item, DataItem nextExtremum)
{
int startIndex = item.Index + 1;
int endIndex = nextExtremum.Index - 1;
var itemsRange = analyzer.getDataItems().Where(i => i.Index >= startIndex && i.Index <= endIndex);
if (itemsRange.Count() == 0) return 0;
double oppositeValue = (type.IsPeak() ?
itemsRange.Min(i => i.Quotation.Low) :
itemsRange.Max(i => i.Quotation.High));
double baseValue = item.Quotation.ProperValue(type);
return Math.Abs(oppositeValue - baseValue) / Math.Max(oppositeValue, baseValue);
}
/* Funkcja przeliczająca na punktu wahanice ceny w danej świecy.
* Wysoko ocenione muszą być dwie sytuacje:
* - świeca z bardzo małym korpusem, ale tylko wtedy, kiedy występuje
* od razu po innym trafieniu (najlepiej ze świecą o dużym korpusie).
* - w innych sytuacjach im większy korpus, tym lepiej.
*/
private double EvaluatePriceChange(DataItem item)
{
return 0;
}