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source: branches/2719_HeuristicLab.DatastreamAnalysis/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Transformations/ShiftToRangeTransformation.cs

Last change on this file was 17980, checked in by jzenisek, 4 years ago

#2719 merged head of HeuristicLab.Problems.DataAnalysis into branch; added several minor items

File size: 2.3 KB
RevLine 
[10775]1using System.Collections.Generic;
2using System.Linq;
3using HeuristicLab.Common;
4using HeuristicLab.Core;
5using HeuristicLab.Data;
6using HeuristicLab.Parameters;
[17980]7using HEAL.Attic;
[10775]8
[11068]9namespace HeuristicLab.Problems.DataAnalysis {
[17980]10  [StorableType("4A91E704-927C-4278-AA11-79C16BD8E4F2")]
[10909]11  [Item("Shift to Range Transformation", "f(x) = k * x + d, start <= f(x) <= end | Represents a linear Transformation using Parameters defining a target range")]
[10841]12  public class ShiftToRangeTransformation : LinearTransformation {
[10775]13    protected const string RangeParameterName = "Range";
14
15    #region Parameters
16    public IValueParameter<DoubleRange> RangeParameter {
17      get { return (IValueParameter<DoubleRange>)Parameters[RangeParameterName]; }
18    }
19    #endregion
20
21    #region properties
[10932]22    public override string ShortName {
23      get { return "Sft"; }
24    }
[10775]25    public DoubleRange Range {
26      get { return RangeParameter.Value; }
27    }
28    #endregion
29
30    [StorableConstructor]
[17980]31    protected ShiftToRangeTransformation(StorableConstructorFlag _) : base(_) { }
[11114]32    protected ShiftToRangeTransformation(ShiftToRangeTransformation original, Cloner cloner)
[10775]33      : base(original, cloner) {
34    }
[10841]35    public ShiftToRangeTransformation(IEnumerable<string> allowedColumns)
[10775]36      : base(allowedColumns) {
[10777]37      MultiplierParameter.Hidden = true;
38      AddendParameter.Hidden = true;
[10808]39      Parameters.Add(new ValueParameter<DoubleRange>(RangeParameterName, "start, end | Range for the target window of the linear transformation", new DoubleRange(0.0, 1.0)));
[10775]40    }
41
42    public override IDeepCloneable Clone(Cloner cloner) {
[10841]43      return new ShiftToRangeTransformation(this, cloner);
[10775]44    }
45
46    public override bool Check(IEnumerable<double> data, out string errorMsg) {
47      ConfigureParameters(data);
48      return base.Check(data, out errorMsg);
49    }
50
[15030]51    public override void ConfigureParameters(IEnumerable<double> data) {
[10775]52      double originalRangeStart = data.Min();
53      double originalRangeEnd = data.Max();
54
55      double originalRangeWidth = originalRangeEnd - originalRangeStart;
56      double targetRangeWidth = Range.End - Range.Start;
57
[10777]58      Multiplier = targetRangeWidth / originalRangeWidth;
59      Addend = Range.Start - originalRangeStart * Multiplier;
[10775]60    }
61  }
62}
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