Changeset 10711 for branches/DataPreprocessing/HeuristicLab.DataPreprocessing/3.3/Implementations/ManipulationLogic.cs

Timestamp:

04/02/14 14:50:03 (10 years ago)

Author:

rstoll

Message:

Moved methods for "delete columns/rows without sufficient information" from ITransformationLogic to IManipulationLogic

File:

• branches/DataPreprocessing/HeuristicLab.DataPreprocessing/3.3/Implementations/ManipulationLogic.cs (modified) (1 diff)

branches/DataPreprocessing/HeuristicLab.DataPreprocessing/3.3/Implementations/ManipulationLogic.cs

@@ -255 +255 @@
       });
     }
+
+
+    public void DeleteRowsWithMissingValuesGreater(double percent) {
+      for (int i = 0; i < preprocessingData.Rows; ++i) {
+        int missingCount = statisticsLogic.GetRowMissingValueCount(i);
+        if (100f / preprocessingData.Columns * missingCount >= percent) {
+          preprocessingData.DeleteRow(i);
+          --i;
+        }
+      }
+    }
+
+    public void DeleteColumnsWithMissingValuesGreater(float percent) {
+      for (int i = 0; i < preprocessingData.Columns; ++i) {
+        int missingCount = statisticsLogic.GetMissingValueCount(i);
+        if (100f / preprocessingData.Columns * missingCount >= percent) {
+          preprocessingData.DeleteColumn(i);
+          --i;
+        }
+      }
+    }
+
+    public void DeleteColumnsWithVarianceSmaller(double variance) {
+      for (int i = 0; i < preprocessingData.Columns; ++i) {
+        if (preprocessingData.IsType<double>(i) || preprocessingData.IsType<DateTime>(i)) {
+          double columnVariance = statisticsLogic.GetVariance(i);
+          if (columnVariance < variance) {
+            preprocessingData.DeleteColumn(i);
+            --i;
+          }
+        }
+      }
+    }
+
   }
 }