SIMD Refactor: Merge simd-dev into dev (#55)

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com> Co-authored-by: aider (openrouter/anthropic/claude-sonnet-4) <aider@aider.chat> Co-authored-by: Warp <agent@warp.dev>
2026-08-20 19:48:05 +00:00 · 2026-01-18 19:02:03 -08:00
parent 5bcdf8d614
commit 86fe32a682
1750 changed files with 198235 additions and 80539 deletions
@@ -0,0 +1,62 @@
+using System.Drawing;
+using TradingPlatform.BusinessLayer;
+using static QuanTAlib.IndicatorExtensions;
+
+namespace QuanTAlib;
+
+/// <summary>
+/// SIGMOID (Logistic Function) Quantower indicator.
+/// Maps any real-valued input to the range (0, 1) using the logistic function.
+/// </summary>
+public class SigmoidIndicator : Indicator, IWatchlistIndicator
+{
+    [DataSourceInput]
+    public SourceType Source { get; set; } = SourceType.Close;
+
+    [InputParameter("Steepness (k)", sortIndex: 10, minimum: 0.01, maximum: 100, increment: 0.1, decimalPlaces: 2)]
+    public double Steepness { get; set; } = 1.0;
+
+    [InputParameter("Midpoint (x0)", sortIndex: 20, minimum: -10000, maximum: 10000, increment: 1, decimalPlaces: 2)]
+    public double Midpoint { get; set; } = 0.0;
+
+    [InputParameter("Show Cold Values", sortIndex: 100)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private Sigmoid? _sigmoid;
+    private Func<IHistoryItem, double>? _selector;
+
+    public int MinHistoryDepths => 1;
+    public override string ShortName => $"SIGMOID({Steepness:F2},{Midpoint:F2})";
+
+    public SigmoidIndicator()
+    {
+        Name = "SIGMOID - Logistic Function";
+        Description = "Maps any real-valued input to the range (0, 1) using the logistic function";
+        SeparateWindow = true;
+        OnBackGround = true;
+    }
+
+    protected override void OnInit()
+    {
+        _sigmoid = new Sigmoid(Steepness, Midpoint);
+        _selector = Source.GetPriceSelector();
+
+        AddLineSeries(new LineSeries("Sigmoid", Color.Orange, 2, LineStyle.Solid));
+    }
+
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        if (_sigmoid == null || _selector == null) return;
+
+        var item = HistoricalData[0, SeekOriginHistory.End];
+        double value = _selector(item);
+        bool isNew = args.IsNewBar();
+
+        TValue input = new(item.TimeLeft, value);
+        _sigmoid.Update(input, isNew);
+
+        bool isHot = _sigmoid.IsHot;
+
+        LinesSeries[0].SetValue(_sigmoid.Last.Value, isHot, ShowColdValues);
+    }
+}