refactor: Simplify TSeries and Dema constructors, and streamline benchmark methods for improved readability

lib/core/tbarseries/tbarseries.cs

@@ -11,12 +11,12 @@ namespace QuanTAlib;
 /// </summary>
 public class TBarSeries : IReadOnlyList<TBar>
 {
-    protected readonly List<long> _t = new();
+    protected readonly List<long> _t;
-    protected readonly List<double> _o = new();
+    protected readonly List<double> _o;
-    protected readonly List<double> _h = new();
+    protected readonly List<double> _h;
-    protected readonly List<double> _l = new();
+    protected readonly List<double> _l;
-    protected readonly List<double> _c = new();
+    protected readonly List<double> _c;
-    protected readonly List<double> _v = new();
+    protected readonly List<double> _v;
 
     public string Name { get; set; } = "Bar";
     public event Action<TBar>? Pub;
@@ -34,13 +34,8 @@ public class TBarSeries : IReadOnlyList<TBar>
     public TSeries C => Close;
     public TSeries V => Volume;
 
-    public TBarSeries()
+    public TBarSeries() : this(0)
     {
-        Open = new TSeries(_t, _o) { Name = "Open" };
-        High = new TSeries(_t, _h) { Name = "High" };
-        Low = new TSeries(_t, _l) { Name = "Low" };
-        Close = new TSeries(_t, _c) { Name = "Close" };
-        Volume = new TSeries(_t, _v) { Name = "Volume" };
     }
 
     public TBarSeries(int capacity)

lib/core/tseries/tseries.cs

@@ -20,10 +20,8 @@ namespace QuanTAlib;
 
     public event Action<TValue>? Pub;
 
-    public TSeries()
+    public TSeries() : this(0)
     {
-        _t = new List<long>();
-        _v = new List<double>();
     }
 
     public TSeries(int capacity)

lib/trends/dema/Dema.cs

@@ -120,7 +120,7 @@ public sealed class Dema : ITValuePublisher
 
     public TSeries Update(TSeries source)
     {
-        if (source.Count == 0) return new TSeries(new List<long>(), new List<double>());
+        if (source.Count == 0) return new TSeries();
 
         int len = source.Count;
         var t = new List<long>(len);

lib/trends/ema/Ema.cs

@@ -149,7 +149,7 @@ public sealed class Ema : ITValuePublisher
 
     public TSeries Update(TSeries source)
     {
-        if (source.Count == 0) return new TSeries(new List<long>(), new List<double>());
+        if (source.Count == 0) return new TSeries();
 
         int len = source.Count;
         var t = new List<long>(len);
@@ -291,7 +291,7 @@ public sealed class Ema : ITValuePublisher
 
         if (source.Length == 0) return;
 
-        State state = State.New();
+        var state = State.New();
         double lastValid = 0;
 
         CalculateCore(source, output, alpha, ref state, ref lastValid);

lib/trends/sma/Sma.cs

@@ -137,7 +137,7 @@ public sealed class Sma : ITValuePublisher
 
     public TSeries Update(TSeries source)
     {
-        if (source.Count == 0) return new TSeries(new List<long>(), new List<double>());
+        if (source.Count == 0) return new TSeries();
 
         int len = source.Count;
         var t = new List<long>(len);

lib/trends/tema/Tema.cs

@@ -129,7 +129,7 @@ public sealed class Tema : ITValuePublisher
 
     public TSeries Update(TSeries source)
     {
-        if (source.Count == 0) return new TSeries(new List<long>(), new List<double>());
+        if (source.Count == 0) return new TSeries();
 
         int len = source.Count;
         var t = new List<long>(len);

lib/trends/trima/Trima.cs

@@ -141,7 +141,7 @@ public sealed class Trima : ITValuePublisher
 
     public TSeries Update(TSeries source)
     {
-        if (source.Count == 0) return new TSeries(new List<long>(), new List<double>());
+        if (source.Count == 0) return new TSeries();
 
         int len = source.Count;
         var t = new List<long>(len);

lib/trends/wma/Wma.cs

@@ -141,7 +141,7 @@ public sealed class Wma : ITValuePublisher
 
     public TSeries Update(TSeries source)
     {
-        if (source.Count == 0) return new TSeries(new List<long>(), new List<double>());
+        if (source.Count == 0) return new TSeries();
 
         int len = source.Count;
         var t = new List<long>(len);

perf/Benchmark.cs

@@ -176,15 +176,7 @@ public class IndicatorBenchmarks
 
     [BenchmarkCategory("SMA")]
     [Benchmark(Description = "Skender SMA")]
-    public double Skender_Sma()
+    public object Skender_Sma() => _quotes.GetSma(Period);
-    {
-        double sum = 0;
-        foreach (var r in _quotes.GetSma(Period))
-        {
-            sum += (double)(r.Sma ?? 0);
-        }
-        return sum;
-    }
 
     // ==================== EMA ====================
     [BenchmarkCategory("EMA")]
@@ -229,15 +221,7 @@ public class IndicatorBenchmarks
 
     [BenchmarkCategory("EMA")]
     [Benchmark(Description = "Skender EMA")]
-    public double Skender_Ema()
+    public object Skender_Ema() => _quotes.GetEma(Period);
-    {
-        double sum = 0;
-        foreach (var r in _quotes.GetEma(Period))
-        {
-            sum += (double)(r.Ema ?? 0);
-        }
-        return sum;
-    }
 
     // ==================== WMA ====================
     [BenchmarkCategory("WMA")]
@@ -282,15 +266,7 @@ public class IndicatorBenchmarks
 
     [BenchmarkCategory("WMA")]
     [Benchmark(Description = "Skender WMA")]
-    public double Skender_Wma()
+    public object Skender_Wma() => _quotes.GetWma(Period);
-    {
-        double sum = 0;
-        foreach (var r in _quotes.GetWma(Period))
-        {
-            sum += (double)(r.Wma ?? 0);
-        }
-        return sum;
-    }
 
     // ==================== TRIMA ====================
     [BenchmarkCategory("TRIMA")]
@@ -376,15 +352,7 @@ public class IndicatorBenchmarks
 
     [BenchmarkCategory("DEMA")]
     [Benchmark(Description = "Skender DEMA")]
-    public double Skender_Dema()
+    public object Skender_Dema() => _quotes.GetDema(Period);
-    {
-        double sum = 0;
-        foreach (var r in _quotes.GetDema(Period))
-        {
-            sum += (double)(r.Dema ?? 0);
-        }
-        return sum;
-    }
 
     // ==================== TEMA ====================
     [BenchmarkCategory("TEMA")]
@@ -429,13 +397,5 @@ public class IndicatorBenchmarks
 
     [BenchmarkCategory("TEMA")]
     [Benchmark(Description = "Skender TEMA")]
-    public double Skender_Tema()
+    public object Skender_Tema() => _quotes.GetTema(Period);
-    {
-        double sum = 0;
-        foreach (var r in _quotes.GetTema(Period))
-        {
-            sum += (double)(r.Tema ?? 0);
-        }
-        return sum;
-    }
 }