[2] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[5445] | 3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Collections.Generic;
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[2285] | 24 | using System.Linq;
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[3376] | 25 | using HeuristicLab.Common;
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[3253] | 26 | using HeuristicLab.Core;
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[4068] | 27 | using HeuristicLab.Data;
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[3253] | 28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[2] | 29 |
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[3253] | 30 | namespace HeuristicLab.Problems.DataAnalysis {
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| 31 | [Item("Dataset", "Represents a dataset containing data that should be analyzed.")]
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| 32 | [StorableClass]
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| 33 | public sealed class Dataset : NamedItem, IStringConvertibleMatrix {
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[3933] | 34 | [StorableConstructor]
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[4722] | 35 | private Dataset(bool deserializing) : base(deserializing) { }
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| 36 | private Dataset(Dataset original, Cloner cloner)
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| 37 | : base(original, cloner) {
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[5559] | 38 | variableNameToVariableIndexMapping = original.variableNameToVariableIndexMapping;
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[4722] | 39 | data = original.data;
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[2319] | 40 | }
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[5552] | 41 | public override IDeepCloneable Clone(Cloner cloner) {
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| 42 | return new Dataset(this, cloner);
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| 43 | }
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| 44 |
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[3264] | 45 | public Dataset(IEnumerable<string> variableNames, double[,] data)
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[3933] | 46 | : base() {
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[2319] | 47 | Name = "-";
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[3264] | 48 | if (variableNames.Count() != data.GetLength(1)) {
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| 49 | throw new ArgumentException("Number of variable names doesn't match the number of columns of data");
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| 50 | }
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[3933] | 51 | this.data = (double[,])data.Clone();
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[5552] | 52 | VariableNames = variableNames;
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[2038] | 53 | }
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| 54 |
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[5552] | 55 |
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[5559] | 56 | private Dictionary<string, int> variableNameToVariableIndexMapping;
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| 57 | private Dictionary<int, string> variableIndexToVariableNameMapping;
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[3294] | 58 | [Storable]
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[2319] | 59 | public IEnumerable<string> VariableNames {
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[5689] | 60 | get {
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| 61 | // convert KeyCollection to an array first for persistence
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| 62 | return variableNameToVariableIndexMapping.Keys.ToArray();
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| 63 | }
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[5552] | 64 | private set {
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[5559] | 65 | if (variableNameToVariableIndexMapping != null) throw new InvalidOperationException("VariableNames can only be set once.");
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| 66 | this.variableNameToVariableIndexMapping = new Dictionary<string, int>();
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[5570] | 67 | this.variableIndexToVariableNameMapping = new Dictionary<int, string>();
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[5552] | 68 | int i = 0;
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| 69 | foreach (string variableName in value) {
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[5559] | 70 | this.variableNameToVariableIndexMapping.Add(variableName, i);
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[5570] | 71 | this.variableIndexToVariableNameMapping.Add(i, variableName);
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[5552] | 72 | i++;
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| 73 | }
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| 74 | }
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[333] | 75 | }
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| 76 |
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[3294] | 77 | [Storable]
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[3308] | 78 | private double[,] data;
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| 79 | private double[,] Data {
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[3253] | 80 | get { return data; }
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[2] | 81 | }
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| 82 |
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[3253] | 83 | // elementwise access
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| 84 | public double this[int rowIndex, int columnIndex] {
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| 85 | get { return data[rowIndex, columnIndex]; }
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[2] | 86 | }
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[3839] | 87 | public double this[string variableName, int rowIndex] {
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| 88 | get {
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| 89 | int columnIndex = GetVariableIndex(variableName);
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| 90 | return data[rowIndex, columnIndex];
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| 91 | }
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| 92 | }
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[3933] | 93 |
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| 94 | public double[] GetVariableValues(int variableIndex) {
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| 95 | return GetVariableValues(variableIndex, 0, Rows);
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[1287] | 96 | }
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[3933] | 97 | public double[] GetVariableValues(string variableName) {
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| 98 | return GetVariableValues(GetVariableIndex(variableName), 0, Rows);
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| 99 | }
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[5552] | 100 | public double[] GetVariableValues(int variableIndex, int start, int end) {
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| 101 | return GetEnumeratedVariableValues(variableIndex, start, end).ToArray();
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| 102 | }
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[3294] | 103 | public double[] GetVariableValues(string variableName, int start, int end) {
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| 104 | return GetVariableValues(GetVariableIndex(variableName), start, end);
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[2311] | 105 | }
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| 106 |
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[3994] | 107 | public IEnumerable<double> GetEnumeratedVariableValues(int variableIndex) {
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| 108 | return GetEnumeratedVariableValues(variableIndex, 0, Rows);
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| 109 | }
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| 110 | public IEnumerable<double> GetEnumeratedVariableValues(int variableIndex, int start, int end) {
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| 111 | if (start < 0 || !(start <= end))
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| 112 | throw new ArgumentException("Start must be between 0 and end (" + end + ").");
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| 113 | if (end > Rows || end < start)
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| 114 | throw new ArgumentException("End must be between start (" + start + ") and dataset rows (" + Rows + ").");
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[5552] | 115 |
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| 116 | for (int i = start; i < end; i++)
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| 117 | yield return data[i, variableIndex];
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[3994] | 118 | }
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[4031] | 119 | public IEnumerable<double> GetEnumeratedVariableValues(int variableIndex, IEnumerable<int> rows) {
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| 120 | foreach (int row in rows)
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| 121 | yield return data[row, variableIndex];
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| 122 | }
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| 123 |
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[3994] | 124 | public IEnumerable<double> GetEnumeratedVariableValues(string variableName) {
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| 125 | return GetEnumeratedVariableValues(GetVariableIndex(variableName), 0, Rows);
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| 126 | }
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| 127 | public IEnumerable<double> GetEnumeratedVariableValues(string variableName, int start, int end) {
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| 128 | return GetEnumeratedVariableValues(GetVariableIndex(variableName), start, end);
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| 129 | }
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[4031] | 130 | public IEnumerable<double> GetEnumeratedVariableValues(string variableName, IEnumerable<int> rows) {
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| 131 | return GetEnumeratedVariableValues(GetVariableIndex(variableName), rows);
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| 132 | }
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[3994] | 133 |
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[3294] | 134 | public string GetVariableName(int variableIndex) {
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[5559] | 135 | try {
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| 136 | return variableIndexToVariableNameMapping[variableIndex];
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| 137 | }
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| 138 | catch (KeyNotFoundException ex) {
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| 139 | throw new ArgumentException("The variable index " + variableIndex + " was not found.", ex);
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| 140 | }
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[2319] | 141 | }
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[3294] | 142 | public int GetVariableIndex(string variableName) {
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[5552] | 143 | try {
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[5559] | 144 | return variableNameToVariableIndexMapping[variableName];
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[2319] | 145 | }
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[5552] | 146 | catch (KeyNotFoundException ex) {
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| 147 | throw new ArgumentException("The variable name " + variableName + " was not found.", ex);
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| 148 | }
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[2319] | 149 | }
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[2310] | 150 |
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[3253] | 151 | #region IStringConvertibleMatrix Members
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| 152 | public int Rows {
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[3933] | 153 | get { return data.GetLength(0); }
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| 154 | set { throw new NotSupportedException(); }
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[2] | 155 | }
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[3253] | 156 | public int Columns {
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[3933] | 157 | get { return data.GetLength(1); }
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| 158 | set { throw new NotSupportedException(); }
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[2] | 159 | }
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| 160 |
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[3321] | 161 | public bool SortableView {
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[3933] | 162 | get { return false; }
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| 163 | set { throw new NotSupportedException(); }
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[3321] | 164 | }
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[3430] | 165 | public bool ReadOnly {
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[3933] | 166 | get { return true; }
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[3430] | 167 | }
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| 168 |
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[3308] | 169 | IEnumerable<string> IStringConvertibleMatrix.ColumnNames {
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| 170 | get { return this.VariableNames; }
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[3933] | 171 | set { throw new NotSupportedException(); }
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[3308] | 172 | }
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[3311] | 173 | IEnumerable<string> IStringConvertibleMatrix.RowNames {
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[5552] | 174 | get { return Enumerable.Empty<string>(); }
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[3933] | 175 | set { throw new NotSupportedException(); }
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[3311] | 176 | }
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| 177 |
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[3253] | 178 | public string GetValue(int rowIndex, int columnIndex) {
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[3308] | 179 | return data[rowIndex, columnIndex].ToString();
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[2] | 180 | }
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[3253] | 181 | public bool SetValue(string value, int rowIndex, int columnIndex) {
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[3933] | 182 | throw new NotSupportedException();
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[237] | 183 | }
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[5552] | 184 | public bool Validate(string value, out string errorMessage) {
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| 185 | throw new NotSupportedException();
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| 186 | }
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[237] | 187 |
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[5552] | 188 | public event EventHandler ColumnsChanged { add { } remove { } }
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| 189 | public event EventHandler RowsChanged { add { } remove { } }
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| 190 | public event EventHandler ColumnNamesChanged { add { } remove { } }
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| 191 | public event EventHandler RowNamesChanged { add { } remove { } }
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| 192 | public event EventHandler SortableViewChanged { add { } remove { } }
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| 193 | public event EventHandler<EventArgs<int, int>> ItemChanged { add { } remove { } }
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[5554] | 194 | public event EventHandler Reset { add { } remove { } }
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[2012] | 195 | #endregion
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[2] | 196 | }
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| 197 | }
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