Changeset 13760

Timestamp:

04/14/16 13:33:02 (3 years ago)

Author:

bburlacu

Message:

#2593: Add ToModifiable method to the Dataset class. Add ReplaceColumn method to the ModifiableDataset.

Location:

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4

Files:

• Dataset.cs (modified) (2 diffs)
• ModifiableDataset.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Dataset.cs

@@ -1 +1 @@
 #region License Information
 /* HeuristicLab
- * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
+ * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
  *
  * This file is part of HeuristicLab.
@@ -111 +111 @@
     }
 
+    public ModifiableDataset ToModifiable() {
+      var values = new List<IList>();
+      foreach (var v in variableNames) {
+        if (VariableHasType<double>(v)) {
+          values.Add(((List<double>)variableValues[v]).ToList());
+        } else if (VariableHasType<string>(v)) {
+          values.Add(((List<string>)variableValues[v]).ToList());
+        } else if (VariableHasType<DateTime>(v)) {
+          values.Add(((List<DateTime>)variableValues[v]).ToList());
+        } else {
+          throw new ArgumentException("Unknown variable type.");
+        }
+      }
+      return new ModifiableDataset(variableNames, values);
+    }
+
     protected Dataset(Dataset dataset) : this(dataset.variableNames, dataset.variableValues.Values) { }
 

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/ModifiableDataset.cs

@@ -2 +2 @@
 
 /* HeuristicLab
- * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
+ * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
  *
  * This file is part of HeuristicLab.
@@ -56 +56 @@
     public ModifiableDataset() : base() { }
 
-    public ModifiableDataset(Dataset dataset) : base(dataset) { }
     public ModifiableDataset(IEnumerable<string> variableNames, IEnumerable<IList> variableValues) : base(variableNames, variableValues) { }
 
@@ -74 +73 @@
       }
       OnReset();
+    }
+
+    public void ReplaceColumn<T>(string variableName, List<T> values) {
+      if (!variableValues.ContainsKey(variableName))
+        throw new ArgumentException(string.Format("Variable {0} is not present in the dataset."), variableName);
+      if (values.Count != variableValues[variableName].Count)
+        throw new ArgumentException("The number of values must coincide with the number of dataset rows.");
+      if (GetVariableType(variableName) != values[0].GetType())
+        throw new ArgumentException("The type of the provided value does not match the variable type.");
+      variableValues[variableName] = values;
     }