Remove multiple Pine Script indicators: SSFDSP, STARCHANNEL, STBANDS, STC, UBANDS, UCHANNEL, VWAPBANDS, and VWAPSD. These indicators were deleted to streamline the library and remove unused or redundant code.

2026-08-23 04:58:08 +00:00 · 2026-02-20 18:44:56 -08:00
parent 3dd05f23e4
commit cbeefc9d64
283 changed files with 23963 additions and 3838 deletions
@@ -0,0 +1,85 @@
+using System.Drawing;
+using System.Runtime.CompilerServices;
+using TradingPlatform.BusinessLayer;
+
+namespace QuanTAlib;
+
+[SkipLocalsInit]
+public sealed class FiIndicator : Indicator, IWatchlistIndicator
+{
+    [InputParameter("Period", sortIndex: 10, 1, 500, 1, 0)]
+    public int Period { get; set; } = 13;
+
+    [InputParameter("Show cold values", sortIndex: 21)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private Fi _fi = null!;
+    private double _prevClose = double.NaN;
+    private double _pPrevClose = double.NaN;
+    private readonly LineSeries _series;
+
+    public int MinHistoryDepths => Period;
+    int IWatchlistIndicator.MinHistoryDepths => Period;
+
+    public override string ShortName => $"FI({Period})";
+    public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/oscillators/fi/Fi.Quantower.cs";
+
+    public FiIndicator()
+    {
+        OnBackGround = true;
+        SeparateWindow = true;
+        Name = "FI - Force Index";
+        Description = "Force Index measures buying and selling pressure as EMA-smoothed price change × volume";
+
+        _series = new LineSeries(name: "FI", color: Color.Yellow, width: 2, style: LineStyle.Solid);
+        AddLineSeries(_series);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnInit()
+    {
+        _fi = new Fi(Period);
+        _prevClose = double.NaN;
+        _pPrevClose = double.NaN;
+        base.OnInit();
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        bool isNew = args.IsNewBar();
+
+        if (isNew)
+        {
+            _pPrevClose = _prevClose;
+        }
+        else
+        {
+            _prevClose = _pPrevClose;
+        }
+
+        TBar bar = this.GetInputBar(args);
+        double close = bar.Close;
+        double volume = bar.Volume;
+
+        double rawForce;
+        if (double.IsNaN(_prevClose))
+        {
+            rawForce = 0;
+        }
+        else
+        {
+            rawForce = (close - _prevClose) * volume;
+        }
+
+        if (isNew)
+        {
+            _prevClose = close;
+        }
+
+        TValue input = new(bar.Time, rawForce);
+        TValue result = _fi.Update(input, isNew);
+
+        _series.SetValue(result.Value, _fi.IsHot, ShowColdValues);
+    }
+}