mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-08-15 00:58:04 +00:00
Miha Kralj
915d7a007b
- Implemented the Standardize class for calculating Z-Score normalization over a specified lookback period. - Updated NDepend badge SVG files to reflect new metrics. - Modified NDepend project files to reference the updated solution file name. - Removed outdated documentation files related to indicator proposals and channel documentation remediation. - Updated workspace configuration to point to the new solution file.
80 lines
2.8 KiB
C#
80 lines
2.8 KiB
C#
using System.Drawing;
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using TradingPlatform.BusinessLayer;
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using static QuanTAlib.IndicatorExtensions;
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namespace QuanTAlib;
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/// <summary>
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/// TtmLrc: TTM Linear Regression Channel - Quantower Indicator Adapter
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/// John Carter's Linear Regression Channel with ±1σ and ±2σ standard deviation bands.
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/// Middle = Linear regression line value at current bar
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/// Upper1/Lower1 = ±1 standard deviation (68% price range)
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/// Upper2/Lower2 = ±2 standard deviations (95% price range)
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/// </summary>
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public sealed class TtmLrcIndicator : Indicator, IWatchlistIndicator
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{
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[InputParameter("Period", sortIndex: 10, minimum: 2, maximum: 500, increment: 1, decimalPlaces: 0)]
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public int Period { get; set; } = 100;
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[InputParameter("Price Type", sortIndex: 20)]
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public PriceType SourceType { get; set; } = PriceType.Close;
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[InputParameter("Show Cold Values", sortIndex: 100)]
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public bool ShowColdValues { get; set; } = true;
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private TtmLrc? _indicator;
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public int MinHistoryDepths => Period;
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public override string ShortName => $"TtmLrc({Period})";
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public TtmLrcIndicator()
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{
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Name = "TTM LRC - Linear Regression Channel";
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Description = "John Carter's Linear Regression Channel with ±1σ and ±2σ bands";
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SeparateWindow = false;
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OnBackGround = true;
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}
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protected override void OnInit()
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{
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_indicator = new TtmLrc(Period);
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// Middle line (regression line)
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AddLineSeries(new LineSeries("Midline", Color.DodgerBlue, 2, LineStyle.Solid));
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// ±1 StdDev bands (inner bands)
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AddLineSeries(new LineSeries("Upper1", Color.FromArgb(100, 255, 100), 1, LineStyle.Solid));
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AddLineSeries(new LineSeries("Lower1", Color.FromArgb(255, 100, 100), 1, LineStyle.Solid));
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// ±2 StdDev bands (outer bands)
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AddLineSeries(new LineSeries("Upper2", Color.FromArgb(50, 200, 50), 1, LineStyle.Dash));
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AddLineSeries(new LineSeries("Lower2", Color.FromArgb(200, 50, 50), 1, LineStyle.Dash));
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}
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protected override void OnUpdate(UpdateArgs args)
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{
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if (_indicator is null)
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{
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return;
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}
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var item = HistoricalData[0, SeekOriginHistory.End];
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bool isNew = args.IsNewBar();
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TValue input = new(
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time: item.TimeLeft,
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value: item[SourceType]
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);
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_indicator.Update(input, isNew);
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bool isHot = _indicator.IsHot;
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LinesSeries[0].SetValue(_indicator.Midline.Value, isHot, ShowColdValues);
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LinesSeries[1].SetValue(_indicator.Upper1.Value, isHot, ShowColdValues);
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LinesSeries[2].SetValue(_indicator.Lower1.Value, isHot, ShowColdValues);
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LinesSeries[3].SetValue(_indicator.Upper2.Value, isHot, ShowColdValues);
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LinesSeries[4].SetValue(_indicator.Lower2.Value, isHot, ShowColdValues);
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}
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}
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