Refactor indicators to include "Ehlers" in names and descriptions for clarity

- Updated the name and description of the Hilbert Trendline (HTIT) to "Ehlers Hilbert Transform Instantaneous Trend (HTIT)". - Changed the name and description of the MESA Adaptive Moving Average (MAMA) to "Ehlers MESA Adaptive Moving Average". - Modified the Center of Gravity (CG) indicator to "Ehlers Center of Gravity (CG)". - Renamed the Detrended Synthetic Price (DSP) to "Ehlers Detrended Synthetic Price (DSP)". - Updated the Autocorrelation Periodogram (EACP) to "Ehlers Autocorrelation Periodogram (EACP)". - Changed the Homodyne Discriminator (HOMOD) to "Ehlers Homodyne Discriminator (HOMOD)". - Updated the Hilbert Transform Dominant Cycle Period and Phase indicators to include "Ehlers" in their names. - Renamed the Hilbert Transform Phasor Components to "Ehlers Hilbert Transform Phasor Components (HT_PHASOR)". - Updated the SineWave indicator to "Ehlers Hilbert Transform SineWave (HT_SINE)". - Changed the Phasor Analysis indicator to "Ehlers Hilbert Transform Phasor Components (HT_PHASOR)". - Updated the SSF-Based Detrended Synthetic Price to "Ehlers SSF Detrended Synthetic Price (SSFDSP)". - Renamed the Ultimate Channel to "Ehlers Ultimate Channel (UCHANNEL)". - Added new indicators: Moving Average Variable Period (MAVP), Ehlers Predictive Moving Average (PMA), Ehlers Reverse EMA (REVERSEEMA), and Ehlers Trendflex Indicator (TRENDFLEX). - Updated various SVG badges to reflect changes in classes, comments, source files, lines of code, methods, and public types.
2026-08-21 12:08:05 +00:00 · 2026-02-18 19:08:15 -08:00
parent 24e86d762a
commit 3dd05f23e4
144 changed files with 3468 additions and 788 deletions
@@ -0,0 +1,66 @@
+using System.Drawing;
+using System.Runtime.CompilerServices;
+using TradingPlatform.BusinessLayer;
+
+namespace QuanTAlib;
+
+[SkipLocalsInit]
+public sealed class DecoIndicator : Indicator, IWatchlistIndicator
+{
+    [InputParameter("Short Period", sortIndex: 1, 1, 1000, 1, 0)]
+    public int ShortPeriod { get; set; } = 30;
+
+    [InputParameter("Long Period", sortIndex: 2, 2, 2000, 1, 0)]
+    public int LongPeriod { get; set; } = 60;
+
+    [IndicatorExtensions.DataSourceInput(sortIndex: 3)]
+    public SourceType Source { get; set; } = SourceType.Close;
+
+    [InputParameter("Show cold values", sortIndex: 21)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private Deco _deco = null!;
+    private readonly LineSeries _series;
+
+    public static int MinHistoryDepths => 0;
+    int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
+
+    public override string ShortName => $"DECO ({ShortPeriod},{LongPeriod})";
+    public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/oscillators/deco/Deco.Quantower.cs";
+
+    public DecoIndicator()
+    {
+        OnBackGround = true;
+        SeparateWindow = true;
+        Name = "DECO - Ehlers Decycler Oscillator";
+        Description = "Ehlers' Decycler Oscillator isolates intermediate cycles via dual HP filters";
+
+        _series = new LineSeries("DECO", Color.Yellow, 2, LineStyle.Solid);
+        AddLineSeries(_series);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnInit()
+    {
+        _deco = new Deco(ShortPeriod, LongPeriod);
+        base.OnInit();
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        var priceSelector = Source.GetPriceSelector();
+        var item = HistoricalData[0, SeekOriginHistory.End];
+        double price = priceSelector(item);
+
+        TValue input = new(item.TimeLeft, price);
+        TValue result = _deco.Update(input, args.IsNewBar());
+
+        if (!_deco.IsHot && !ShowColdValues)
+        {
+            return;
+        }
+
+        _series.SetValue(result.Value);
+    }
+}