normalization of methods

lib/errors/mdae/Mdae.Tests.cs

@@ -192,7 +192,7 @@ public class MdaeTests
             iterativeResults.Add(mdaeIterative.Update(actual, predicted).Value);
         }
 
-        var batchResults = Mdae.Calculate(actualSeries, predictedSeries, DefaultPeriod);
+        var batchResults = Mdae.Batch(actualSeries, predictedSeries, DefaultPeriod);
 
         Assert.Equal(100, iterativeResults.Count);
         Assert.Equal(iterativeResults.Count, batchResults.Count);
@@ -237,7 +237,7 @@ public class MdaeTests
             predictedArr[i] = pred;
         }
 
-        var tseriesResult = Mdae.Calculate(actualSeries, predictedSeries, DefaultPeriod);
+        var tseriesResult = Mdae.Batch(actualSeries, predictedSeries, DefaultPeriod);
         Mdae.Batch(actualArr.AsSpan(), predictedArr.AsSpan(), output.AsSpan(), DefaultPeriod);
 
         for (int i = 0; i < 100; i++)
@@ -286,7 +286,7 @@ public class MdaeTests
 
         predicted.Add(DateTime.UtcNow.Ticks, 98);
 
-        Assert.Throws<ArgumentException>(() => Mdae.Calculate(actual, predicted, DefaultPeriod));
+        Assert.Throws<ArgumentException>(() => Mdae.Batch(actual, predicted, DefaultPeriod));
     }
 
     [Fact]

lib/errors/mdae/Mdae.cs

@@ -114,7 +114,7 @@ public sealed class Mdae : AbstractBase
 
     public override TSeries Update(TSeries source)
     {
-        throw new NotSupportedException("MdAE requires two inputs. Use Calculate(actualSeries, predictedSeries, period).");
+        throw new NotSupportedException("MdAE requires two inputs. Use Batch(actualSeries, predictedSeries, period).");
     }
 
     public override void Prime(ReadOnlySpan<double> source, TimeSpan? step = null)
@@ -161,7 +161,7 @@ public sealed class Mdae : AbstractBase
         return (_sortBuffer[mid - 1] + _sortBuffer[mid]) * 0.5;
     }
 
-    public static TSeries Calculate(TSeries actual, TSeries predicted, int period)
+    public static TSeries Batch(TSeries actual, TSeries predicted, int period)
     {
         if (actual.Count != predicted.Count)
         {
@@ -299,6 +299,13 @@ public sealed class Mdae : AbstractBase
         }
     }
 
+    public static (TSeries Results, Mdae Indicator) Calculate(TSeries actual, TSeries predicted, int period)
+    {
+        var indicator = new Mdae(period);
+        TSeries results = Batch(actual, predicted, period);
+        return (results, indicator);
+    }
+
     /// <summary>
     /// QuickSelect for Span - finds the k-th smallest element in O(n) average time.
     /// Uses insertion sort for small arrays and Lomuto partition for larger arrays.
@@ -378,4 +385,4 @@ public sealed class Mdae : AbstractBase
 
         return span[left];
     }
-}
+}