style patterns

lib/numerics/sigmoid/Sigmoid.Quantower.Tests.cs

@@ -162,4 +162,4 @@ public class SigmoidIndicatorTests
             now = now.AddMinutes(1);
         }
     }
-}
+}

lib/numerics/sigmoid/Sigmoid.Quantower.cs

@@ -46,7 +46,10 @@ public class SigmoidIndicator : Indicator, IWatchlistIndicator
 
     protected override void OnUpdate(UpdateArgs args)
     {
-        if (_sigmoid == null || _selector == null) return;
+        if (_sigmoid == null || _selector == null)
+        {
+            return;
+        }
 
         var item = HistoricalData[0, SeekOriginHistory.End];
         double value = _selector(item);

lib/numerics/sigmoid/Sigmoid.Tests.cs

@@ -219,7 +219,9 @@ public class SigmoidTests
         var series = new TSeries();
 
         for (int i = 0; i < 100; i++)
+        {
             series.Add(new TValue(DateTime.UtcNow.AddSeconds(i), i - 50), isNew: true);
+        }
 
         var result = sigmoid.Update(series);
 
@@ -232,7 +234,9 @@ public class SigmoidTests
         var series = new TSeries();
 
         for (int i = 0; i < 100; i++)
+        {
             series.Add(new TValue(DateTime.UtcNow.AddSeconds(i), i - 50), isNew: true);
+        }
 
         var result = Sigmoid.Calculate(series);
 
@@ -274,7 +278,9 @@ public class SigmoidTests
         double[] source = new double[100];
         var rng = new Random(42);
         for (int i = 0; i < source.Length; i++)
+        {
             source[i] = rng.NextDouble() * 200 - 100;
+        }
 
         double[] spanOutput = new double[source.Length];
         Sigmoid.Calculate(source.AsSpan(), spanOutput.AsSpan());
@@ -282,10 +288,14 @@ public class SigmoidTests
         var sigmoid = new Sigmoid();
         double[] streamOutput = new double[source.Length];
         for (int i = 0; i < source.Length; i++)
+        {
             streamOutput[i] = sigmoid.Update(new TValue(DateTime.UtcNow.AddSeconds(i), source[i]), true).Value;
+        }
 
         for (int i = 0; i < source.Length; i++)
+        {
             Assert.Equal(streamOutput[i], spanOutput[i], Epsilon);
+        }
     }
 
     [Fact]
@@ -315,7 +325,9 @@ public class SigmoidTests
         sigmoid.Pub += (_, in _) => eventCount++;
 
         for (int i = 0; i < 10; i++)
+        {
             source.Add(new TValue(DateTime.UtcNow.AddSeconds(i), i), isNew: true);
+        }
 
         Assert.Equal(10, eventCount);
     }
@@ -351,4 +363,4 @@ public class SigmoidTests
         Assert.Equal(0.5, result0.Value, Epsilon);
         Assert.Equal(0.5, result100.Value, Epsilon);
     }
-}
+}

lib/numerics/sigmoid/Sigmoid.Validation.Tests.cs

@@ -222,7 +222,9 @@ public class SigmoidValidationTests
         double[] source = new double[500];
         var rng = new Random(42);
         for (int i = 0; i < source.Length; i++)
+        {
             source[i] = rng.NextDouble() * 200 - 50;  // Range [-50, 150]
+        }
 
         // Span calculation
         double[] spanOutput = new double[source.Length];
@@ -236,4 +238,4 @@ public class SigmoidValidationTests
             Assert.Equal(spanOutput[i], result.Value, Epsilon);
         }
     }
-}
+}

lib/numerics/sigmoid/Sigmoid.cs

@@ -38,7 +38,9 @@ public sealed class Sigmoid : AbstractBase
     public Sigmoid(double k = 1.0, double x0 = 0.0)
     {
         if (k <= 0)
+        {
             throw new ArgumentException("Steepness (k) must be positive", nameof(k));
+        }
 
         _k = k;
         _x0 = x0;
@@ -65,8 +67,16 @@ public sealed class Sigmoid : AbstractBase
     {
         double exponent = -k * (x - x0);
         // Guard against overflow: exp(>709) overflows, exp(<-709) underflows to 0
-        if (exponent > 700) return 0.0;  // exp(-700) ≈ 0
-        if (exponent < -700) return 1.0; // 1/(1+0) = 1
+        if (exponent > 700)
+        {
+            return 0.0;  // exp(-700) ≈ 0
+        }
+
+        if (exponent < -700)
+        {
+            return 1.0; // 1/(1+0) = 1
+        }
+
         return 1.0 / (1.0 + Math.Exp(exponent));
     }
 
@@ -74,9 +84,13 @@ public sealed class Sigmoid : AbstractBase
     public override TValue Update(TValue input, bool isNew = true)
     {
         if (isNew)
+        {
             _p_state = _state;
+        }
         else
+        {
             _state = _p_state;
+        }
 
         double value = input.Value;
         double result;
@@ -134,11 +148,19 @@ public sealed class Sigmoid : AbstractBase
     public static void Calculate(ReadOnlySpan<double> source, Span<double> output, double k = 1.0, double x0 = 0.0)
     {
         if (source.Length == 0)
+        {
             throw new ArgumentException("Source cannot be empty", nameof(source));
+        }
+
         if (output.Length < source.Length)
+        {
             throw new ArgumentException("Output length must be >= source length", nameof(output));
+        }
+
         if (k <= 0)
+        {
             throw new ArgumentException("Steepness (k) must be positive", nameof(k));
+        }
 
         double lastValid = 0.5;  // Sigmoid(x0) = 0.5
         int i = 0;