Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixAnalysisCalculation.java @ 3435:262e7d7e58fe

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FixA: Made curve fitting over the given calculation range reusable. Removed dead code. flys-artifacts/trunk@5098 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 22 Jul 2012 10:38:30 +0000
parents 1a636be7612b
children e111902834d3
rev   line source
3411
0ef83077c93f FixA: Renamed FixCalculation to FixAnalysisCalculation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
1 package de.intevation.flys.artifacts.model.fixings;
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2
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3 import de.intevation.flys.artifacts.access.FixAnalysisAccess;
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4
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5 import de.intevation.flys.artifacts.math.fitting.Function;
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6 import de.intevation.flys.artifacts.math.fitting.FunctionFactory;
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7
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8 import de.intevation.flys.artifacts.model.CalculationResult;
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9 import de.intevation.flys.artifacts.model.DateRange;
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10
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11 import de.intevation.flys.artifacts.model.FixingsOverview.AndFilter;
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12 import de.intevation.flys.artifacts.model.FixingsOverview.DateRangeFilter;
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13
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14 import de.intevation.flys.artifacts.model.FixingsOverview.Fixing.Filter;
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15
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16 import de.intevation.flys.artifacts.model.FixingsOverview.Fixing;
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17 import de.intevation.flys.artifacts.model.FixingsOverview.IdsFilter;
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18 import de.intevation.flys.artifacts.model.FixingsOverview.KmFilter;
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19 import de.intevation.flys.artifacts.model.FixingsOverview.SectorFilter;
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20
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21 import de.intevation.flys.artifacts.model.FixingsOverview;
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22 import de.intevation.flys.artifacts.model.FixingsOverviewFactory;
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23 import de.intevation.flys.artifacts.model.Parameters;
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24 import de.intevation.flys.artifacts.model.Range;
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25
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26 import de.intevation.flys.utils.DateAverager;
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27 import de.intevation.flys.utils.KMIndex;
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28
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29 import java.util.ArrayList;
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30 import java.util.Date;
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31 import java.util.List;
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32
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33 import org.apache.commons.math.stat.descriptive.moment.StandardDeviation;
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34
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35 import org.apache.log4j.Logger;
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36
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37 public class FixAnalysisCalculation
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38 extends FixCalculation
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39 {
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40 private static Logger log = Logger.getLogger(FixAnalysisCalculation.class);
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41
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42 protected DateRange referencePeriod;
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43 protected DateRange [] analysisPeriods;
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44
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45 public FixAnalysisCalculation() {
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46 }
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47
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48 public FixAnalysisCalculation(FixAnalysisAccess access) {
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49 super(access);
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50
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51 DateRange referencePeriod = access.getReferencePeriod();
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52 DateRange [] analysisPeriods = access.getAnalysisPeriods();
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53
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54 if (referencePeriod == null) {
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55 addProblem("fix.missing.reference.period");
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56 }
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57
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58 if (analysisPeriods == null || analysisPeriods.length < 1) {
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59 addProblem("fix.missing.analysis.periods");
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60 }
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61
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62 if (!hasProblems()) {
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63 this.referencePeriod = referencePeriod;
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64 this.analysisPeriods = analysisPeriods;
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65 }
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66 }
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67
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68 public CalculationResult calculate() {
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69
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70 FixingsOverview overview =
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71 FixingsOverviewFactory.getOverview(river);
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72
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73 if (overview == null) {
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74 addProblem("fix.no.overview.available");
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75 }
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76
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77 Function func = FunctionFactory.getInstance()
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78 .getFunction(function);
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79
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80 if (func == null) {
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81 addProblem("fix.invalid.function.name");
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82 }
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83
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84 if (hasProblems()) {
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85 return new CalculationResult(this);
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86 }
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87
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88 FitResult fitResult = doFitting(overview, func);
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89
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90 if (fitResult == null) {
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91 return new CalculationResult(this);
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92 }
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93
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94 KMIndex<AnalysisPeriod []> analysisPeriods =
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95 calculateAnalysisPeriods(
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96 func,
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97 fitResult.getParameters(),
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98 overview);
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99
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100 analysisPeriods.sort();
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101
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102 FixAnalysisResult far = new FixAnalysisResult(
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103 fitResult.getParameters(),
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104 fitResult.getReferenced(),
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105 fitResult.getOutliers(),
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106 analysisPeriods);
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107
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108 return new CalculationResult(far, this);
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109 }
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110
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111 @Override
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112 protected Filter createFilter() {
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113 Filter ids = super.createFilter();
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114 DateRangeFilter rdf = new DateRangeFilter(
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115 referencePeriod.getFrom(),
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116 referencePeriod.getTo());
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117 return new AndFilter().add(rdf).add(ids);
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118 }
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119
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120 protected KMIndex<AnalysisPeriod []> calculateAnalysisPeriods(
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121 Function function,
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122 Parameters parameters,
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123 FixingsOverview overview
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124 ) {
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125 Range range = new Range(from, to);
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126
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127 int kmIndex = parameters.columnIndex("km");
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128 int maxQIndex = parameters.columnIndex("max_q");
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129
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130 ColumnCache cc = new ColumnCache();
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131
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132 double [] wq = new double[2];
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133
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134 int [] parameterIndices =
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135 parameters.columnIndices(function.getParameterNames());
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136
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137 double [] parameterValues = new double[parameterIndices.length];
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138
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139 DateAverager dateAverager = new DateAverager();
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140
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141 KMIndex<AnalysisPeriod []> results =
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142 new KMIndex<AnalysisPeriod []>(parameters.size());
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143
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144 IdsFilter idsFilter = new IdsFilter(events);
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145
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146 for (int row = 0, R = parameters.size(); row < R; ++row) {
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147 double km = parameters.get(row, kmIndex);
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148 parameters.get(row, parameterIndices, parameterValues);
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149
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150 // This is the paraterized function for a given km.
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151 de.intevation.flys.artifacts.math.Function instance =
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152 function.instantiate(parameterValues);
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153
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154 KmFilter kmFilter = new KmFilter(km);
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155
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156 ArrayList<AnalysisPeriod> periodResults =
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157 new ArrayList<AnalysisPeriod>(analysisPeriods.length);
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158
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159 for (DateRange analysisPeriod: analysisPeriods) {
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160 DateRangeFilter drf = new DateRangeFilter(
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161 analysisPeriod.getFrom(),
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diff changeset
162 analysisPeriod.getTo());
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163
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164 QWD [] qSectorAverages = new QWD[4];
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165 double [] qSectorStdDevs = new double[4];
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166
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167 ArrayList<QWD> allQWDs = new ArrayList<QWD>();
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168
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169 // for all Q sectors.
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170 for (int qSector = qSectorStart; qSector < qSectorEnd; ++qSector) {
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171
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172 Filter filter = new AndFilter()
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173 .add(kmFilter)
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174 .add(new SectorFilter(qSector))
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175 .add(drf)
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176 .add(idsFilter);
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177
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178 List<Fixing.Column> metas = overview.filter(range, filter);
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179
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180 if (metas.isEmpty()) {
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181 // No fixings for km and analysis period
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182 continue;
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183 }
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184
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185 double sumQ = 0.0;
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186 double sumW = 0.0;
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187
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188 StandardDeviation stdDev = new StandardDeviation();
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189
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190 List<QWD> qwds = new ArrayList<QWD>(metas.size());
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191
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192 dateAverager.clear();
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193
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194 for (Fixing.Column meta: metas) {
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195 if (meta.findQSector(km) != qSector) {
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196 // Ignore not matching sectors.
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diff changeset
197 continue;
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198 }
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199
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200 Column column = cc.getColumn(meta);
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201 if (column == null || !column.getQW(km, wq)) {
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diff changeset
202 continue;
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diff changeset
203 }
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204
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diff changeset
205 double fw = instance.value(wq[1]);
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206 if (Double.isNaN(fw)) {
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diff changeset
207 continue;
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diff changeset
208 }
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209
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diff changeset
210 double dw = (wq[0] - fw)*100.0;
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211
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diff changeset
212 stdDev.increment(dw);
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213
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diff changeset
214 Date date = column.getDate();
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215 String description = column.getDescription();
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216
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diff changeset
217 QWD qwd = new QWD(
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diff changeset
218 wq[1], wq[0], description, date, true, dw);
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219
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diff changeset
220 qwds.add(qwd);
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221
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diff changeset
222 sumW += wq[0];
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223 sumQ += wq[1];
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224
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diff changeset
225 dateAverager.add(date);
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diff changeset
226 }
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diff changeset
227
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228 // Calulate average per Q sector.
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229 int N = qwds.size();
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230 if (N > 0) {
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diff changeset
231 allQWDs.addAll(qwds);
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diff changeset
232 double avgW = sumW / N;
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diff changeset
233 double avgQ = sumQ / N;
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234
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diff changeset
235 double avgFw = instance.value(avgQ);
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diff changeset
236 if (!Double.isNaN(avgFw)) {
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diff changeset
237 double avgDw = (avgW - avgFw)*100.0;
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diff changeset
238 Date avgDate = dateAverager.getAverage();
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239
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diff changeset
240 String avgDescription = "avg.deltawt." + qSector;
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diff changeset
241
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242 QWD avgQWD = new QWD(
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243 avgQ, avgW, avgDescription, avgDate, true, avgDw);
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244
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245 qSectorAverages[qSector] = avgQWD;
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246 }
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247 qSectorStdDevs[qSector] = stdDev.getResult();
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248 }
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249 else {
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250 qSectorStdDevs[qSector] = Double.NaN;
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251 }
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252 } // for all Q sectors
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253
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254 QWD [] aqwds = allQWDs.toArray(new QWD[allQWDs.size()]);
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255
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256 AnalysisPeriod periodResult = new AnalysisPeriod(
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257 analysisPeriod,
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258 aqwds,
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259 qSectorAverages,
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260 qSectorStdDevs);
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261 periodResults.add(periodResult);
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262 }
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263
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264 double maxQ = -Double.MAX_VALUE;
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265 for (AnalysisPeriod ap: periodResults) {
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266 double q = ap.getMaxQ();
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267 if (q > maxQ) {
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268 maxQ = q;
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269 }
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270 }
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271
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272 double oldMaxQ = parameters.get(row, maxQIndex);
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273 if (oldMaxQ < maxQ) {
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274 parameters.set(row, maxQIndex, maxQ);
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275 }
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276
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277 results.add(km, periodResults.toArray(
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278 new AnalysisPeriod[periodResults.size()]));
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279 }
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280
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281 return results;
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282 }
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283 }
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284 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org