Decay

Source/Trends/FMA_Series.cs

@@ -10,7 +10,7 @@ FMA: Fibonacci Moving Average
 
 Sources:
     https://kaabar-sofien.medium.com/the-fibonacci-moving-average-the-full-guide-60e718117595
-	  https://www.tradingview.com/script/6pxgp2vh-Fibonacci-Moving-Average-FMA/
+	https://usethinkscript.com/threads/fibonacci-moving-average.8099/
 
 </summary> */
 

Source/Trends/KAMA_Series.cs

@@ -39,17 +39,17 @@ public class KAMA_Series : Single_TSeries_Indicator
   {
     if (update){
       _buffer[_buffer.Count - 1] = TValue.v;
-      this._lastkama = this._lastlastkama;
-    } else {
+      _lastkama = _lastlastkama;
+    }
+    else {
       _buffer.Add(TValue.v);
+      _lastlastkama = _lastkama;
     }
     if (_buffer.Count > _p + 1) { _buffer.RemoveAt(0); }
 
     double _kama = 0;
-    if (this.Count < this._p) {
-        for (int i = 0; i < this._buffer.Count; i++) { _kama += this._buffer[i]; }
-        _kama /= this._buffer.Count;
-    } else {
+    if (this.Count < this._p) { _kama = TValue.v; }
+    else {
       double _change = Math.Abs(_buffer[_buffer.Count - 1] - _buffer[(_buffer.Count > _p + 1) ? 1 : 0]);
       double _sumpv = 0;
       for (int i = 1; i < _buffer.Count; i++)
@@ -58,8 +58,7 @@ public class KAMA_Series : Single_TSeries_Indicator
       double _sc = (_er * (_scFast - _scSlow)) + _scSlow;
       _kama = (_lastkama + (_sc * _sc * (TValue.v - _lastkama)));
     }
-    _lastlastkama = _lastkama;
     _lastkama = _kama;
         base.Add((TValue.t, _kama), update, _NaN);
-        }
+  }
 }

Source/Trends/SMA_Series.cs

@@ -21,7 +21,8 @@ public class SMA_Series : Single_TSeries_Indicator {
 	private int _len, _oldlen;
 
 	public SMA_Series(TSeries source, int period = 0, bool useNaN = false) : base(source, period, false) {
-		Reset();
+		_sum = _oldsum = 0;
+		_len = _oldlen = 0;
 		if (this._data.Count > 0) { base.Add(this._data); }
 	}
 

Source/Trends/ZLEMA_Series.cs

@@ -26,13 +26,15 @@ public class ZLEMA_Series : Single_TSeries_Indicator
 	private readonly double _k, _k1m;
 	private double _lastema, _lastema_o;
 	private int _llag;
+	private readonly bool _useSMA;
 
-	public ZLEMA_Series(TSeries source, int period, bool useNaN = false) : base(source, period, useNaN)
+	public ZLEMA_Series(TSeries source, int period, bool useNaN = false, bool useSMA = true) : base(source, period, useNaN)
 	{
 		this._k = 2.0 / (this._p + 1);
 		this._k1m = 1.0 - this._k;
 		this._lastema = this._lastema_o = double.NaN;
 		_llag = (int)((_p-1) * 0.5);
+		_useSMA = useSMA;
 		if (_data.Count > 0) { base.Add(_data); }
 	}
 
@@ -47,7 +49,7 @@ public class ZLEMA_Series : Single_TSeries_Indicator
         double _zl = TValue.v + (TValue.v - _data[_lag].v);
 		double _ema = 0;
 
-		if (this.Count < this._p) {
+		if (this.Count < this._p && _useSMA) {
 			 Add_Replace_Trim(_buffer, _zl, _p, update);
 			_ema = _buffer.Average();
 		} else {