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security() Neu betrachtet

security() Neu betrachtet zeigt, wie man in StockSharp auf Daten eines höheren Zeitrahmens zugreift und das Neuzeichnen durch Verwendung vorheriger oder aktueller Werte steuert.

Details

  • Zweck: Zugriff auf Daten höherer Zeitrahmen mit Neuzeichnungskontrolle
  • Handel: Demonstration
  • Indikatoren: keine
  • Stops: nein
  • Standardwerte:
    • CandleType = 1 minute
    • HigherTimeframe = 5 minutes
    • Repaint = false
using System;
using System.Collections.Generic;

using Ecng.Common;

using StockSharp.Algo.Indicators;
using StockSharp.Algo.Strategies;
using StockSharp.BusinessEntities;
using StockSharp.Messages;

namespace StockSharp.Samples.Strategies;

/// <summary>
/// Multi-timeframe strategy using higher timeframe close as a filter for entries.
/// </summary>
public class SecurityRevisitedStrategy : Strategy
{
	private readonly StrategyParam<int> _emaLength;
	private readonly StrategyParam<DataType> _candleType;

	private decimal _prevDiff;

	public int EmaLength { get => _emaLength.Value; set => _emaLength.Value = value; }
	public DataType CandleType { get => _candleType.Value; set => _candleType.Value = value; }

	public SecurityRevisitedStrategy()
	{
		_emaLength = Param(nameof(EmaLength), 20)
			.SetGreaterThanZero()
			.SetDisplay("EMA Length", "EMA period", "General");

		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame())
			.SetDisplay("Candle Type", "Candle Type", "General");
	}

	/// <inheritdoc />
	public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
		=> [(Security, CandleType)];

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();
		_prevDiff = 0;
	}

	/// <inheritdoc />
	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);

		var ema = new ExponentialMovingAverage { Length = EmaLength };

		var subscription = SubscribeCandles(CandleType);
		subscription.Bind(ema, ProcessCandle).Start();

		var area = CreateChartArea();
		if (area != null)
		{
			DrawCandles(area, subscription);
			DrawIndicator(area, ema);
			DrawOwnTrades(area);
		}
	}

	private void ProcessCandle(ICandleMessage candle, decimal emaValue)
	{
		if (candle.State != CandleStates.Finished)
			return;

		var diff = candle.ClosePrice - emaValue;
		var crossUp = _prevDiff <= 0 && diff > 0;
		var crossDown = _prevDiff >= 0 && diff < 0;
		_prevDiff = diff;

		if (crossUp && Position <= 0)
			BuyMarket();
		else if (crossDown && Position >= 0)
			SellMarket();
	}
}