normalization of methods

lib/volatility/vr/Vr.Tests.cs

@@ -377,7 +377,7 @@ public class VrTests
     {
         var bars = GenerateBarData(100);
 
-        var result = Vr.Calculate(bars, period: 10);
+        var result = Vr.Batch(bars, period: 10);
 
         Assert.Equal(bars.Count, result.Count);
         for (int i = 0; i < result.Count; i++)
@@ -472,7 +472,7 @@ public class VrTests
         }
 
         // Mode 2: TBarSeries batch
-        var batchResult = Vr.Calculate(bars, period);
+        var batchResult = Vr.Batch(bars, period);
 
         // Mode 3: Span batch
         double[] spanOutput = new double[bars.Count];

lib/volatility/vr/Vr.Validation.Tests.cs

@@ -167,7 +167,7 @@ public class VrValidationTests
         int period = 14;
 
         // Using static Calculate
-        var calculateResult = Vr.Calculate(bars, period);
+        var calculateResult = Vr.Batch(bars, period);
 
         // Using Batch
         double[] batchOutput = new double[bars.Count];

lib/volatility/vr/Vr.cs

@@ -269,7 +269,7 @@ public sealed class Vr : AbstractBase
     /// <summary>
     /// Calculates VR for a TBarSeries (static).
     /// </summary>
-    public static TSeries Calculate(TBarSeries source, int period = 14)
+    public static TSeries Batch(TBarSeries source, int period = 14)
     {
         var vr = new Vr(period);
         return vr.Update(source);
@@ -411,4 +411,12 @@ public sealed class Vr : AbstractBase
             output[i] = vr;
         }
     }
-}
+
+    public static (TSeries Results, Vr Indicator) Calculate(TBarSeries source, int period = 14)
+    {
+        var indicator = new Vr(period);
+        TSeries results = indicator.Update(source);
+        return (results, indicator);
+    }
+
+}