normalization of methods

lib/volume/pvt/Pvt.Tests.cs

@@ -265,7 +265,7 @@ public class PvtTests
             streamingResults[i] = pvtStreaming.Update(bars[i]).Value;
         }
 
-        var batchResult = Pvt.Calculate(bars);
+        var batchResult = Pvt.Batch(bars);
 
         // Compare last 45 values (after warmup)
         for (int i = 5; i < bars.Count; i++)
@@ -299,7 +299,7 @@ public class PvtTests
         }
 
         var spanResult = new double[bars.Count];
-        Pvt.Calculate(close, volume, spanResult);
+        Pvt.Batch(close, volume, spanResult);
 
         // Compare values after first bar
         for (int i = 1; i < bars.Count; i++)
@@ -343,7 +343,7 @@ public class PvtTests
         var volume = new double[8];  // Different length
         var output = new double[10];
 
-        Assert.Throws<ArgumentException>(() => Pvt.Calculate(close, volume, output));
+        Assert.Throws<ArgumentException>(() => Pvt.Batch(close, volume, output));
     }
 
     [Fact]
@@ -353,7 +353,7 @@ public class PvtTests
         var volume = new double[10];
         var output = new double[8];  // Wrong length
 
-        Assert.Throws<ArgumentException>(() => Pvt.Calculate(close, volume, output));
+        Assert.Throws<ArgumentException>(() => Pvt.Batch(close, volume, output));
     }
 
     [Fact]
@@ -363,7 +363,7 @@ public class PvtTests
         var volume = Array.Empty<double>();
         var output = Array.Empty<double>();
 
-        Pvt.Calculate(close, volume, output);  // Should not throw
+        Pvt.Batch(close, volume, output);  // Should not throw
         Assert.Empty(output);
     }
 
@@ -374,7 +374,7 @@ public class PvtTests
         var volume = new double[] { 1000.0 };
         var output = new double[1];
 
-        Pvt.Calculate(close, volume, output);
+        Pvt.Batch(close, volume, output);
 
         Assert.Equal(0.0, output[0]);
     }

lib/volume/pvt/Pvt.Validation.Tests.cs

@@ -59,7 +59,7 @@ public class PvtValidationTests
         }
 
         // Batch
-        var batchResult = Pvt.Calculate(_data.Bars);
+        var batchResult = Pvt.Batch(_data.Bars);
         var batchValues = batchResult.Values.ToArray();
 
         ValidationHelper.VerifyData(streamingValues.ToArray(), batchValues, 0, 100, 1e-9);
@@ -81,7 +81,7 @@ public class PvtValidationTests
         var volume = _data.Bars.Volume.Values.ToArray();
         var spanOutput = new double[close.Length];
 
-        Pvt.Calculate(close, volume, spanOutput);
+        Pvt.Batch(close, volume, spanOutput);
 
         ValidationHelper.VerifyData(streamingValues.ToArray(), spanOutput, 0, 100, 1e-9);
     }

lib/volume/pvt/Pvt.cs

@@ -230,7 +230,7 @@ public sealed class Pvt : ITValuePublisher
         return new TSeries(t, v);
     }
 
-    public static TSeries Calculate(TBarSeries source)
+    public static TSeries Batch(TBarSeries source)
     {
         if (source.Count == 0)
         {
@@ -240,13 +240,13 @@ public sealed class Pvt : ITValuePublisher
         var t = source.Open.Times.ToArray();
         var v = new double[source.Count];
 
-        Calculate(source.Close.Values, source.Volume.Values, v);
+        Batch(source.Close.Values, source.Volume.Values, v);
 
         return new TSeries(t, v);
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static void Calculate(ReadOnlySpan<double> close, ReadOnlySpan<double> volume, Span<double> output)
+    public static void Batch(ReadOnlySpan<double> close, ReadOnlySpan<double> volume, Span<double> output)
     {
         if (close.Length != volume.Length)
         {
@@ -293,4 +293,11 @@ public sealed class Pvt : ITValuePublisher
             }
         }
     }
+
+    public static (TSeries Results, Pvt Indicator) Calculate(TBarSeries source)
+    {
+        var indicator = new Pvt();
+        TSeries results = indicator.Update(source);
+        return (results, indicator);
+    }
 }