Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/AdvancedHistogramDataset.java @ 1142:12abbf15f18a
dummy merge for repo head
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Fri, 28 Sep 2012 12:15:20 +0200 |
parents | f953c9a559d8 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2010 by Intevation GmbH |
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3 * |
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4 * This program is free software under the LGPL (>=v2.1) |
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5 * Read the file LGPL.txt coming with the software for details |
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6 * or visit http://www.gnu.org/licenses/ if it does not exist. |
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7 */ |
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8 |
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9 package de.intevation.gnv.chart; |
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10 |
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11 import java.io.Serializable; |
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12 import java.util.ArrayList; |
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13 import java.util.HashMap; |
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14 import java.util.List; |
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15 import java.util.Map; |
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16 |
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17 import org.apache.log4j.Logger; |
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18 |
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19 import org.jfree.data.general.DatasetChangeEvent; |
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20 import org.jfree.data.xy.AbstractIntervalXYDataset; |
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21 import org.jfree.data.xy.IntervalXYDataset; |
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22 |
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23 import org.jfree.data.statistics.HistogramType; |
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24 import org.jfree.data.statistics.HistogramBin; |
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25 |
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26 import org.jfree.util.ObjectUtilities; |
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27 import org.jfree.util.PublicCloneable; |
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28 |
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29 /** |
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30 * This class extends the functionality of the internal JFreeChart class |
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31 * <code>HistogramDataset</code>. <code>AdvancedHistogramDataset</code> takes |
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32 * the number of bins OR a bin width. It is mainly a copy of this class. The |
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33 * reason why there is no inheritance from JFreeChart's internal class is, |
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34 * that basic attributes have private access there. |
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35 * |
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36 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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37 */ |
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38 public class AdvancedHistogramDataset |
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39 extends AbstractIntervalXYDataset |
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40 implements IntervalXYDataset, Cloneable, PublicCloneable, Serializable |
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41 { |
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42 /** A list of maps. */ |
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43 protected List list; |
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44 |
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45 /** The histogram type. */ |
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46 protected HistogramType type; |
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47 |
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48 /** The width of a single bin. */ |
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49 protected double binWidth = -1; |
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50 |
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51 /** The number of bins. */ |
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52 protected int bins = -1; |
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53 |
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54 /** The logger */ |
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55 private static Logger logger = |
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56 Logger.getLogger(AdvancedHistogramDataset.class); |
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57 |
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58 |
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59 /** |
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60 * Creates a new (empty) dataset with a default type of |
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61 * {@link HistogramType}.FREQUENCY. |
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62 */ |
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63 public AdvancedHistogramDataset() { |
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64 this.list = new ArrayList(); |
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65 this.type = HistogramType.FREQUENCY; |
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66 } |
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67 |
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68 /** |
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69 * Creates a new (empty) dataset with a default type of |
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70 * {@link HistogramType}.FREQUENCY. |
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71 */ |
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72 public AdvancedHistogramDataset(int bins, double binWidth) { |
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73 this.list = new ArrayList(); |
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74 this.type = HistogramType.FREQUENCY; |
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75 this.bins = bins; |
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76 this.binWidth = binWidth; |
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77 } |
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78 |
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79 /** |
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80 * Returns the histogram type. |
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81 * |
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82 * @return The type (never <code>null</code>). |
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83 */ |
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84 public HistogramType getType() { |
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85 return this.type; |
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86 } |
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87 |
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88 /** |
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89 * Sets the histogram type and sends a {@link DatasetChangeEvent} to all |
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90 * registered listeners. |
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91 * |
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92 * @param type the type (<code>null</code> not permitted). |
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93 */ |
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94 public void setType(HistogramType type) { |
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95 if (type == null) { |
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96 throw new IllegalArgumentException("Null 'type' argument"); |
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97 } |
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98 this.type = type; |
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99 notifyListeners(new DatasetChangeEvent(this, this)); |
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100 } |
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101 |
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102 /** |
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103 * Adds a series to the dataset, using the specified number of bins. |
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104 * |
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105 * @param key the series key (<code>null</code> not permitted). |
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106 * @param values the values (<code>null</code> not permitted). |
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107 */ |
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108 public void addSeries(Comparable key, double[] values) { |
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109 double minimum = getMinimum(values); |
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110 double maximum = getMaximum(values); |
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111 addSeries(key, values, minimum, maximum); |
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112 } |
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113 |
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114 /** |
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115 * Adds a series to the dataset. Any data value less than minimum will be |
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116 * assigned to the first bin, and any data value greater than maximum will |
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117 * be assigned to the last bin. Values falling on the boundary of |
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118 * adjacent bins will be assigned to the higher indexed bin. |
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119 * |
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120 * @param key the series key (<code>null</code> not permitted). |
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121 * @param values the raw observations. |
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122 * @param bins the number of bins (must be at least 1). |
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123 * @param minimum the lower bound of the bin range. |
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124 * @param maximum the upper bound of the bin range. |
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125 */ |
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126 public void addSeries(Comparable key, |
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127 double[] values, |
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128 double minimum, |
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129 double maximum) { |
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130 |
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131 if (key == null) { |
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132 throw new IllegalArgumentException("Null 'key' argument."); |
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133 } |
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134 if (values == null) { |
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135 throw new IllegalArgumentException("Null 'values' argument."); |
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136 } |
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137 if (bins <= 0 && binWidth <= 0) { |
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138 throw new IllegalArgumentException( |
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139 "We need at least a bin width or the number of bins."); |
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140 } |
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141 |
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142 // There is a binWidth given to calculate the number of bins in this |
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143 // case |
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144 if (bins <= 0) { |
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145 double tmp = (maximum - minimum) / binWidth; |
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146 bins = (int) tmp; |
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147 bins = tmp % 1 > 0 ? bins + 1 : bins; |
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148 |
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149 double overlap = minimum + bins * binWidth - maximum; |
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150 tmp = minimum; |
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151 minimum -= overlap / 2; |
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152 |
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153 logger.debug("There is an overlap of " + overlap); |
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154 logger.info("The lower bound is moved left from " |
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155 + tmp + " to " + minimum); |
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156 |
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157 tmp = maximum; |
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158 maximum += overlap / 2; |
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159 logger.info("The upper bound is moved right from " |
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160 + tmp + " to " + maximum); |
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161 } |
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162 |
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163 if (bins <= 0) { |
1114
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Bugfix: Histogram width results in an IllegalArgumentException (issue320).
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164 bins = 1; |
1055
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165 } |
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166 |
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167 // in this case, there is a number of bins given, so we need to |
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168 // calculate the width of a single bin |
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169 if (binWidth <= 0) |
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170 binWidth = (maximum - minimum) / bins; |
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171 |
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172 logger.info("bin width: " + binWidth); |
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173 logger.info("number of bins: " + bins); |
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174 |
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175 double lower = minimum; |
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176 double upper; |
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177 List binList = new ArrayList(bins); |
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178 for (int i = 0; i < bins; i++) { |
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179 HistogramBin bin; |
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180 // make sure bins[bins.length]'s upper boundary ends at maximum |
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181 // to avoid the rounding issue. the bins[0] lower boundary is |
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182 // guaranteed start from min |
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183 if (i == bins - 1) { |
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184 bin = new HistogramBin(lower, maximum); |
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185 } |
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186 else { |
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187 upper = minimum + (i + 1) * binWidth; |
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188 bin = new HistogramBin(lower, upper); |
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189 lower = upper; |
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190 } |
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191 binList.add(bin); |
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192 } |
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193 // fill the bins |
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194 for (int i = 0; i < values.length; i++) { |
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195 int binIndex = bins - 1; |
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196 if (values[i] < maximum) { |
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197 double fraction = (values[i] - minimum) / (maximum - minimum); |
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198 if (fraction < 0.0) { |
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199 fraction = 0.0; |
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200 } |
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201 binIndex = (int) (fraction * bins); |
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202 // rounding could result in binIndex being equal to bins |
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203 // which will cause an IndexOutOfBoundsException - see bug |
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204 // report 1553088 |
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205 if (binIndex >= bins) { |
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206 binIndex = bins - 1; |
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207 } |
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208 } |
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209 HistogramBin bin = (HistogramBin) binList.get(binIndex); |
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210 bin.incrementCount(); |
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211 } |
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212 // generic map for each series |
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213 Map map = new HashMap(); |
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214 map.put("key", key); |
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215 map.put("bins", binList); |
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216 map.put("values.length", new Integer(values.length)); |
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217 map.put("bin width", new Double(binWidth)); |
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218 this.list.add(map); |
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219 } |
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220 |
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221 /** |
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222 * Returns the minimum value in an array of values. |
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223 * |
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224 * @param values the values (<code>null</code> not permitted and |
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225 * zero-length array not permitted). |
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226 * |
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227 * @return The minimum value. |
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228 */ |
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229 private double getMinimum(double[] values) { |
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230 if (values == null || values.length < 1) { |
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231 throw new IllegalArgumentException( |
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232 "Null or zero length 'values' argument."); |
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233 } |
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234 double min = Double.MAX_VALUE; |
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235 for (int i = 0; i < values.length; i++) { |
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236 if (values[i] < min) { |
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237 min = values[i]; |
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238 } |
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239 } |
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240 return min; |
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241 } |
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242 |
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243 /** |
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244 * Returns the maximum value in an array of values. |
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245 * |
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246 * @param values the values (<code>null</code> not permitted and |
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247 * zero-length array not permitted). |
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248 * |
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249 * @return The maximum value. |
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250 */ |
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251 private double getMaximum(double[] values) { |
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252 if (values == null || values.length < 1) { |
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253 throw new IllegalArgumentException( |
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254 "Null or zero length 'values' argument."); |
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255 } |
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256 double max = -Double.MAX_VALUE; |
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257 for (int i = 0; i < values.length; i++) { |
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258 if (values[i] > max) { |
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259 max = values[i]; |
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260 } |
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261 } |
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262 return max; |
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263 } |
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264 |
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265 /** |
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266 * Returns the bins for a series. |
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267 * |
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268 * @param series the series index (in the range <code>0</code> to |
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269 * <code>getSeriesCount() - 1</code>). |
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270 * |
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271 * @return A list of bins. |
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272 * |
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273 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
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274 * specified range. |
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275 */ |
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276 List getBins(int series) { |
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277 Map map = (Map) this.list.get(series); |
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278 return (List) map.get("bins"); |
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279 } |
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280 |
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281 /** |
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282 * Returns the total number of observations for a series. |
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283 * |
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284 * @param series the series index. |
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285 * |
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286 * @return The total. |
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287 */ |
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288 private int getTotal(int series) { |
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289 Map map = (Map) this.list.get(series); |
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290 return ((Integer) map.get("values.length")).intValue(); |
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291 } |
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292 |
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293 /** |
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294 * Returns the bin width for a series. |
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295 * |
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296 * @param series the series index (zero based). |
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297 * |
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298 * @return The bin width. |
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299 */ |
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300 private double getBinWidth(int series) { |
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301 if (binWidth > 0) |
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302 return binWidth; |
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303 |
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304 Map map = (Map) this.list.get(series); |
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305 return ((Double) map.get("bin width")).doubleValue(); |
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306 } |
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307 |
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308 /** |
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309 * Returns the number of series in the dataset. |
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310 * |
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311 * @return The series count. |
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312 */ |
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313 public int getSeriesCount() { |
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314 return this.list.size(); |
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315 } |
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316 |
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317 /** |
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318 * Returns the key for a series. |
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319 * |
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320 * @param series the series index (in the range <code>0</code> to |
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321 * <code>getSeriesCount() - 1</code>). |
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322 * |
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323 * @return The series key. |
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324 * |
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325 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
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326 * specified range. |
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327 */ |
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328 public Comparable getSeriesKey(int series) { |
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329 Map map = (Map) this.list.get(series); |
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330 return (Comparable) map.get("key"); |
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331 } |
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332 |
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333 /** |
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334 * Returns the number of data items for a series. |
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335 * |
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336 * @param series the series index (in the range <code>0</code> to |
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337 * <code>getSeriesCount() - 1</code>). |
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338 * |
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339 * @return The item count. |
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340 * |
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341 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
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342 * specified range. |
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343 */ |
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344 public int getItemCount(int series) { |
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345 return getBins(series).size(); |
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346 } |
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347 |
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348 /** |
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349 * Returns the X value for a bin. This value won't be used for plotting |
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350 * histograms, since the renderer will ignore it. But other renderers can |
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351 * use it (for example, you could use the dataset to create a line |
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352 * chart). |
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353 * |
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354 * @param series the series index (in the range <code>0</code> to |
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355 * <code>getSeriesCount() - 1</code>). |
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356 * @param item the item index (zero based). |
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357 * |
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358 * @return The start value. |
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359 * |
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360 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
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361 * specified range. |
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362 */ |
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363 public Number getX(int series, int item) { |
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364 List bins = getBins(series); |
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365 HistogramBin bin = (HistogramBin) bins.get(item); |
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366 double x = (bin.getStartBoundary() + bin.getEndBoundary()) / 2.; |
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367 return new Double(x); |
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368 } |
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369 |
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370 /** |
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371 * Returns the y-value for a bin (calculated to take into account the |
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372 * histogram type). |
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373 * |
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374 * @param series the series index (in the range <code>0</code> to |
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375 * <code>getSeriesCount() - 1</code>). |
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376 * @param item the item index (zero based). |
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377 * |
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378 * @return The y-value. |
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379 * |
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380 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
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381 * specified range. |
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382 */ |
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383 public Number getY(int series, int item) { |
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384 List bins = getBins(series); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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385 HistogramBin bin = (HistogramBin) bins.get(item); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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386 double total = getTotal(series); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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387 double binWidth = getBinWidth(series); |
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388 |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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389 if (this.type == HistogramType.FREQUENCY) { |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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390 return new Double(bin.getCount()); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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391 } |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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392 else if (this.type == HistogramType.RELATIVE_FREQUENCY) { |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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393 return new Double(bin.getCount() / total); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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394 } |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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395 else if (this.type == HistogramType.SCALE_AREA_TO_1) { |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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396 return new Double(bin.getCount() / (binWidth * total)); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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397 } |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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398 else { // pretty sure this shouldn't ever happen |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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399 throw new IllegalStateException(); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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400 } |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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401 } |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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402 |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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403 /** |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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404 * Returns the start value for a bin. |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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405 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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406 * @param series the series index (in the range <code>0</code> to |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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407 * <code>getSeriesCount() - 1</code>). |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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408 * @param item the item index (zero based). |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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409 * |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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410 * @return The start value. |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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411 * |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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412 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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413 * specified range. |
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414 */ |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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415 public Number getStartX(int series, int item) { |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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416 List bins = getBins(series); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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417 HistogramBin bin = (HistogramBin) bins.get(item); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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418 return new Double(bin.getStartBoundary()); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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419 } |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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420 |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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421 /** |
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422 * Returns the end value for a bin. |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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423 * |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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424 * @param series the series index (in the range <code>0</code> to |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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425 * <code>getSeriesCount() - 1</code>). |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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426 * @param item the item index (zero based). |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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427 * |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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428 * @return The end value. |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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429 * |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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430 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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431 * specified range. |
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432 */ |
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433 public Number getEndX(int series, int item) { |
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434 List bins = getBins(series); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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435 HistogramBin bin = (HistogramBin) bins.get(item); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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436 return new Double(bin.getEndBoundary()); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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437 } |
bb2679624c6a
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438 |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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439 /** |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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440 * Returns the start y-value for a bin (which is the same as the y-value, |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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441 * this method exists only to support the general form of the |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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|
442 * {@link IntervalXYDataset} interface). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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443 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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444 * @param series the series index (in the range <code>0</code> to |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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445 * <code>getSeriesCount() - 1</code>). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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446 * @param item the item index (zero based). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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447 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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448 * @return The y-value. |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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449 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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450 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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451 * specified range. |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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452 */ |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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453 public Number getStartY(int series, int item) { |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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454 return getY(series, item); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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455 } |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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456 |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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457 /** |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
diff
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458 * Returns the end y-value for a bin (which is the same as the y-value, |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff
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459 * this method exists only to support the general form of the |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff
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|
460 * {@link IntervalXYDataset} interface). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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461 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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462 * @param series the series index (in the range <code>0</code> to |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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463 * <code>getSeriesCount() - 1</code>). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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464 * @param item the item index (zero based). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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465 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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466 * @return The Y value. |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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467 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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468 * @throws IndexOutOfBoundsException if <code>series</code> is outside the |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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469 * specified range. |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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470 */ |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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471 public Number getEndY(int series, int item) { |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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472 return getY(series, item); |
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Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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473 } |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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474 |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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|
475 /** |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
diff
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476 * Tests this dataset for equality with an arbitrary object. |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
diff
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|
477 * |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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478 * @param obj the object to test against (<code>null</code> permitted). |
bb2679624c6a
Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
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parents:
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|
479 * |
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480 * @return A boolean. |
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481 */ |
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482 public boolean equals(Object obj) { |
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483 if (obj == this) { |
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484 return true; |
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485 } |
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486 if (!(obj instanceof AdvancedHistogramDataset)) { |
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487 return false; |
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488 } |
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489 AdvancedHistogramDataset that = (AdvancedHistogramDataset) obj; |
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490 if (!ObjectUtilities.equal(this.type, that.type)) { |
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491 return false; |
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492 } |
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493 if (!ObjectUtilities.equal(this.list, that.list)) { |
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494 return false; |
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495 } |
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496 return true; |
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497 } |
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498 |
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499 /** |
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500 * Returns a clone of the dataset. |
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501 * |
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502 * @return A clone of the dataset. |
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503 * |
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504 * @throws CloneNotSupportedException if the object cannot be cloned. |
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505 */ |
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506 public Object clone() throws CloneNotSupportedException { |
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507 AdvancedHistogramDataset clone = (AdvancedHistogramDataset) super.clone(); |
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508 int seriesCount = getSeriesCount(); |
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509 clone.list = new java.util.ArrayList(seriesCount); |
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510 for (int i = 0; i < seriesCount; i++) { |
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511 clone.list.add(new HashMap((Map) this.list.get(i))); |
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512 } |
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513 return clone; |
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514 } |
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515 } |
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516 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |