[2] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[3253] | 3 | * Copyright (C) 2002-2010 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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| 24 | using System.Xml;
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| 25 | using System.Globalization;
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| 26 | using System.Text;
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[2285] | 27 | using System.Linq;
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[3376] | 28 | using HeuristicLab.Common;
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[3253] | 29 | using HeuristicLab.Core;
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| 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 31 | using HeuristicLab.Data;
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[2] | 32 |
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[3253] | 33 | namespace HeuristicLab.Problems.DataAnalysis {
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| 34 | [Item("Dataset", "Represents a dataset containing data that should be analyzed.")]
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| 35 | [StorableClass]
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| 36 | public sealed class Dataset : NamedItem, IStringConvertibleMatrix {
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[3981] | 37 | // empty constructor for cloning
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[3994] | 38 | private Dataset()
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| 39 | : base() {
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[3981] | 40 | }
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[3994] | 41 |
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[3933] | 42 | [StorableConstructor]
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[4031] | 43 | private Dataset(bool deserializing)
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[3933] | 44 | : base(deserializing) {
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[2319] | 45 | }
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[2] | 46 |
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[3264] | 47 | public Dataset(IEnumerable<string> variableNames, double[,] data)
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[3933] | 48 | : base() {
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[2319] | 49 | Name = "-";
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[3264] | 50 | if (variableNames.Count() != data.GetLength(1)) {
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| 51 | throw new ArgumentException("Number of variable names doesn't match the number of columns of data");
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| 52 | }
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[3933] | 53 | this.data = (double[,])data.Clone();
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[3442] | 54 | this.variableNames = variableNames.ToArray();
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[2038] | 55 | }
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| 56 |
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[3294] | 57 | [Storable]
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[3308] | 58 | private string[] variableNames;
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[2319] | 59 | public IEnumerable<string> VariableNames {
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| 60 | get { return variableNames; }
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[333] | 61 | }
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| 62 |
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[3294] | 63 | [Storable]
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[3308] | 64 | private double[,] data;
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| 65 | private double[,] Data {
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[3253] | 66 | get { return data; }
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[2] | 67 | }
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| 68 |
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[3253] | 69 | // elementwise access
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| 70 | public double this[int rowIndex, int columnIndex] {
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| 71 | get { return data[rowIndex, columnIndex]; }
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[2] | 72 | }
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[3839] | 73 | public double this[string variableName, int rowIndex] {
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| 74 | get {
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| 75 | int columnIndex = GetVariableIndex(variableName);
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| 76 | return data[rowIndex, columnIndex];
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| 77 | }
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| 78 | }
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[3933] | 79 |
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| 80 | public double[] GetVariableValues(int variableIndex) {
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| 81 | return GetVariableValues(variableIndex, 0, Rows);
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[1287] | 82 | }
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[3294] | 83 | public double[] GetVariableValues(int variableIndex, int start, int end) {
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[2311] | 84 | if (start < 0 || !(start <= end))
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| 85 | throw new ArgumentException("Start must be between 0 and end (" + end + ").");
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[3308] | 86 | if (end > Rows || end < start)
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| 87 | throw new ArgumentException("End must be between start (" + start + ") and dataset rows (" + Rows + ").");
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[2311] | 88 |
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| 89 | double[] values = new double[end - start];
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| 90 | for (int i = 0; i < end - start; i++)
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[3253] | 91 | values[i] = data[i + start, variableIndex];
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[2311] | 92 | return values;
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| 93 | }
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[3933] | 94 | public double[] GetVariableValues(string variableName) {
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| 95 | return GetVariableValues(GetVariableIndex(variableName), 0, Rows);
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| 96 | }
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[3294] | 97 | public double[] GetVariableValues(string variableName, int start, int end) {
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| 98 | return GetVariableValues(GetVariableIndex(variableName), start, end);
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[2311] | 99 | }
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| 100 |
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[3994] | 101 | public IEnumerable<double> GetEnumeratedVariableValues(int variableIndex) {
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| 102 | return GetEnumeratedVariableValues(variableIndex, 0, Rows);
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| 103 | }
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| 104 | public IEnumerable<double> GetEnumeratedVariableValues(int variableIndex, int start, int end) {
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| 105 | if (start < 0 || !(start <= end))
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| 106 | throw new ArgumentException("Start must be between 0 and end (" + end + ").");
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| 107 | if (end > Rows || end < start)
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| 108 | throw new ArgumentException("End must be between start (" + start + ") and dataset rows (" + Rows + ").");
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| 109 | for (int i = 0; i < end - start; i++)
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| 110 | yield return data[i + start, variableIndex];
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| 111 | }
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[4031] | 112 | public IEnumerable<double> GetEnumeratedVariableValues(int variableIndex, IEnumerable<int> rows) {
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| 113 | foreach (int row in rows)
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| 114 | yield return data[row, variableIndex];
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| 115 | }
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| 116 |
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[3994] | 117 | public IEnumerable<double> GetEnumeratedVariableValues(string variableName) {
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| 118 | return GetEnumeratedVariableValues(GetVariableIndex(variableName), 0, Rows);
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| 119 | }
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| 120 | public IEnumerable<double> GetEnumeratedVariableValues(string variableName, int start, int end) {
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| 121 | return GetEnumeratedVariableValues(GetVariableIndex(variableName), start, end);
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| 122 | }
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[4031] | 123 | public IEnumerable<double> GetEnumeratedVariableValues(string variableName, IEnumerable<int> rows) {
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| 124 | return GetEnumeratedVariableValues(GetVariableIndex(variableName), rows);
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| 125 | }
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[3994] | 126 |
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| 127 |
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| 128 |
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[3294] | 129 | public string GetVariableName(int variableIndex) {
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[2319] | 130 | return variableNames[variableIndex];
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| 131 | }
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| 132 |
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[3294] | 133 | public int GetVariableIndex(string variableName) {
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[2319] | 134 | for (int i = 0; i < variableNames.Length; i++) {
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| 135 | if (variableNames[i].Equals(variableName)) return i;
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| 136 | }
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| 137 | throw new ArgumentException("The variable name " + variableName + " was not found.");
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| 138 | }
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[2310] | 139 |
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[3933] | 140 | public double[,] GetClonedData() {
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| 141 | return (double[,])data.Clone();
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[2] | 142 | }
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| 143 |
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[3253] | 144 | public override IDeepCloneable Clone(Cloner cloner) {
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[3981] | 145 | Dataset clone = (Dataset)base.Clone(cloner);
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| 146 | clone.variableNames = variableNames;
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| 147 | clone.data = data;
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| 148 | return clone;
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[2319] | 149 | }
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| 150 |
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[3253] | 151 | public event EventHandler Reset;
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| 152 | private void OnReset(EventArgs e) {
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| 153 | var listeners = Reset;
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| 154 | if (listeners != null) listeners(this, e);
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[2319] | 155 | }
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[2] | 156 |
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[3253] | 157 | #region IStringConvertibleMatrix Members
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[237] | 158 |
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[3253] | 159 | public int Rows {
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[3933] | 160 | get { return data.GetLength(0); }
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| 161 | set { throw new NotSupportedException(); }
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[2] | 162 | }
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| 163 |
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[3253] | 164 | public int Columns {
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[3933] | 165 | get { return data.GetLength(1); }
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| 166 | set { throw new NotSupportedException(); }
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[2] | 167 | }
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| 168 |
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[3321] | 169 | public bool SortableView {
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[3933] | 170 | get { return false; }
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| 171 | set { throw new NotSupportedException(); }
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[3321] | 172 | }
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| 173 |
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[3430] | 174 | public bool ReadOnly {
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[3933] | 175 | get { return true; }
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[3430] | 176 | }
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| 177 |
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[3308] | 178 | IEnumerable<string> IStringConvertibleMatrix.ColumnNames {
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| 179 | get { return this.VariableNames; }
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[3933] | 180 | set { throw new NotSupportedException(); }
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[3308] | 181 | }
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| 182 |
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[3311] | 183 | IEnumerable<string> IStringConvertibleMatrix.RowNames {
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| 184 | get { return new List<string>(); }
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[3933] | 185 | set { throw new NotSupportedException(); }
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[3311] | 186 | }
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| 187 |
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[3253] | 188 | public bool Validate(string value, out string errorMessage) {
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[3933] | 189 | throw new NotSupportedException();
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[3253] | 190 | }
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[2] | 191 |
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[3253] | 192 | public string GetValue(int rowIndex, int columnIndex) {
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[3308] | 193 | return data[rowIndex, columnIndex].ToString();
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[2] | 194 | }
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| 195 |
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[3253] | 196 | public bool SetValue(string value, int rowIndex, int columnIndex) {
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[3933] | 197 | throw new NotSupportedException();
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[237] | 198 | }
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| 199 |
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[3321] | 200 | public event EventHandler ColumnNamesChanged;
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| 201 | private void OnColumnNamesChanged() {
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| 202 | EventHandler handler = ColumnNamesChanged;
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| 203 | if (handler != null)
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| 204 | handler(this, EventArgs.Empty);
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| 205 | }
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| 206 | public event EventHandler RowNamesChanged;
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| 207 | private void OnRowNamesChanged() {
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| 208 | EventHandler handler = RowNamesChanged;
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| 209 | if (handler != null)
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| 210 | handler(this, EventArgs.Empty);
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| 211 | }
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| 212 | public event EventHandler SortableViewChanged;
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| 213 | private void OnSortableViewChanged() {
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| 214 | EventHandler handler = SortableViewChanged;
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| 215 | if (handler != null)
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| 216 | handler(this, EventArgs.Empty);
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| 217 | }
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[3253] | 218 | public event EventHandler<EventArgs<int, int>> ItemChanged;
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[3321] | 219 | private void OnItemChanged(int rowIndex, int columnIndex) {
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| 220 | if (ItemChanged != null)
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| 221 | ItemChanged(this, new EventArgs<int, int>(rowIndex, columnIndex));
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| 222 | OnToStringChanged();
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| 223 | }
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[2012] | 224 | #endregion
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[2] | 225 | }
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| 226 | }
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