List of usage examples for org.apache.commons.math3.random EmpiricalDistribution getBinStats
public List<SummaryStatistics> getBinStats()
From source file:edu.wisc.ssec.mcidasv.data.hydra.Statistics.java
public static Long[] histogram(FlatField field, int bins) throws VisADException { Long[] histogram = new Long[bins]; EmpiricalDistribution distribution = new EmpiricalDistribution(bins); distribution.load(field.getValues(false)[0]); int k = 0;/* w w w . j a v a 2s.co m*/ for (SummaryStatistics stats : distribution.getBinStats()) { histogram[k++] = stats.getN(); } return histogram; }
From source file:ijfx.ui.plugin.panel.OverlayPanel.java
protected XYChart.Series<Double, Double> getOverlayHistogram(Overlay overlay) { Timer timer = timerService.getTimer(this.getClass()); timer.start();/*from w w w . ja va 2 s . c om*/ Double[] valueList = statsService.getValueList(currentDisplay(), overlay); timer.elapsed("Getting the stats"); SummaryStatistics sumup = new SummaryStatistics(); for (Double v : valueList) { sumup.addValue(v); } timer.elapsed("Building the sumup"); double min = sumup.getMin(); double max = sumup.getMax(); double range = max - min; int bins = 100;//new Double(max - min).intValue(); EmpiricalDistribution distribution = new EmpiricalDistribution(bins); double[] values = ArrayUtils.toPrimitive(valueList); Arrays.parallelSort(values); distribution.load(values); timer.elapsed("Sort and distrubution repartition up"); XYChart.Series<Double, Double> serie = new XYChart.Series<>(); ArrayList<Data<Double, Double>> data = new ArrayList<>(bins); double k = min; for (SummaryStatistics st : distribution.getBinStats()) { data.add(new Data<Double, Double>(k, new Double(st.getN()))); k += range / bins; } serie.getData().clear(); serie.getData().addAll(data); timer.elapsed("Creating charts"); return serie; }
From source file:ijfx.ui.utils.ChartUpdater.java
public void updateChart() { final double min; // minimum value final double max; // maximum value double range; // max - min final double binSize; // int maximumBinNumber = 30; int finalBinNumber; int differentValuesCount = possibleValues.stream().filter(n -> Double.isFinite(n.doubleValue())) .collect(Collectors.toSet()).size(); if (differentValuesCount < maximumBinNumber) { finalBinNumber = differentValuesCount; } else {/* ww w .j a v a 2 s .c o m*/ finalBinNumber = maximumBinNumber; } EmpiricalDistribution distribution = new EmpiricalDistribution(finalBinNumber); Double[] values = possibleValues.parallelStream().filter(n -> Double.isFinite(n.doubleValue())) .map(v -> v.doubleValue()).sorted() //.toArray(); .toArray(size -> new Double[size]); distribution.load(ArrayUtils.toPrimitive(values)); min = values[0]; max = values[values.length - 1]; range = max - min; binSize = range / (finalBinNumber - 1); //System.out.println(String.format("min = %.0f, max = %.0f, range = %.0f, bin size = %.0f, bin number = %d", min, max, range, binSize, finalBinNumber)); XYChart.Series<Double, Double> serie = new XYChart.Series<>(); ArrayList<XYChart.Data<Double, Double>> data = new ArrayList<>(); double k = min; for (SummaryStatistics st : distribution.getBinStats()) { data.add(new XYChart.Data<>(k, new Double(st.getN()))); k += binSize; } Platform.runLater(() -> { serie.getData().addAll(data); areaChart.getData().clear(); areaChart.getData().add(serie); }); }
From source file:ijfx.ui.filter.DefaultNumberFilter.java
public void updateChart() { final double min; // minimum value final double max; // maximum value double range; // max - min final double binSize; int maximumBinNumber = 30; int finalBinNumber; int differentValuesCount = possibleValues.stream().filter(n -> Double.isFinite(n.doubleValue())) .collect(Collectors.toSet()).size(); if (differentValuesCount < maximumBinNumber) { finalBinNumber = differentValuesCount; } else {// w ww .ja va2 s .c om finalBinNumber = maximumBinNumber; } EmpiricalDistribution distribution = new EmpiricalDistribution(finalBinNumber); double[] values = possibleValues.parallelStream().filter(n -> Double.isFinite(n.doubleValue())) .mapToDouble(v -> v.doubleValue()).sorted().toArray(); distribution.load(values); min = values[0]; max = values[values.length - 1]; range = max - min; binSize = range / (finalBinNumber - 1); XYChart.Series<Double, Double> serie = new XYChart.Series<>(); ArrayList<Data<Double, Double>> data = new ArrayList<>(); double k = min; for (SummaryStatistics st : distribution.getBinStats()) { data.add(new Data<>(k, new Double(st.getN()))); k += binSize; } Platform.runLater(() -> { serie.getData().addAll(data); areaChart.getData().clear(); areaChart.getData().add(serie); updateSlider(min, max, finalBinNumber); }); }
From source file:ijfx.ui.plugin.overlay.OverlayPanel.java
protected XYChart.Series<Double, Double> getOverlayHistogram(Overlay overlay) { Timer timer = timerService.getTimer(this.getClass()); timer.start();//from www .j ava 2 s . c om Double[] valueList = statsService.getValueListFromImageDisplay(currentDisplay(), overlay); timer.elapsed("Getting the stats"); SummaryStatistics sumup = new SummaryStatistics(); for (Double v : valueList) { sumup.addValue(v); } timer.elapsed("Building the sumup"); double min = sumup.getMin(); double max = sumup.getMax(); double range = max - min; int bins = 100;//new Double(max - min).intValue(); EmpiricalDistribution distribution = new EmpiricalDistribution(bins); double[] values = ArrayUtils.toPrimitive(valueList); Arrays.parallelSort(values); distribution.load(values); timer.elapsed("Sort and distrubution repartition up"); XYChart.Series<Double, Double> serie = new XYChart.Series<>(); ArrayList<Data<Double, Double>> data = new ArrayList<>(bins); double k = min; for (SummaryStatistics st : distribution.getBinStats()) { data.add(new Data<Double, Double>(k, new Double(st.getN()))); k += range / bins; } serie.getData().clear(); serie.getData().addAll(data); timer.elapsed("Creating charts"); return serie; }
From source file:org.apache.solr.client.solrj.io.eval.HistogramEvaluator.java
@Override public Object doWork(Object... values) throws IOException { if (Arrays.stream(values).anyMatch(item -> null == item)) { return null; }/*from w ww.j ava 2 s . c o m*/ List<?> sourceValues; Integer bins = 10; if (values.length >= 1) { sourceValues = values[0] instanceof List<?> ? (List<?>) values[0] : Arrays.asList(values[0]); if (values.length >= 2) { if (values[1] instanceof Number) { bins = ((Number) values[1]).intValue(); } else { throw new IOException(String.format(Locale.ROOT, "Invalid expression %s - if second parameter is provided then it must be a valid number but found %s instead", toExpression(constructingFactory), values[1].getClass().getSimpleName())); } } } else { throw new IOException( String.format(Locale.ROOT, "Invalid expression %s - expecting at least one value but found %d", toExpression(constructingFactory), containedEvaluators.size())); } EmpiricalDistribution distribution = new EmpiricalDistribution(bins); distribution.load( ((List<?>) sourceValues).stream().mapToDouble(value -> ((Number) value).doubleValue()).toArray()); ; List<Tuple> histogramBins = new ArrayList<>(); for (SummaryStatistics binSummary : distribution.getBinStats()) { Map<String, Number> map = new HashMap<>(); map.put("max", binSummary.getMax()); map.put("mean", binSummary.getMean()); map.put("min", binSummary.getMin()); map.put("stdev", binSummary.getStandardDeviation()); map.put("sum", binSummary.getSum()); map.put("N", binSummary.getN()); map.put("var", binSummary.getVariance()); map.put("cumProb", distribution.cumulativeProbability(binSummary.getMean())); map.put("prob", distribution.probability(binSummary.getMin(), binSummary.getMax())); histogramBins.add(new Tuple(map)); } return histogramBins; }
From source file:tech.tablesaw.columns.numbers.NumberMapFunctions.java
default DoubleColumn bin(int binCount) { double[] histogram = new double[binCount]; EmpiricalDistribution distribution = new EmpiricalDistribution(binCount); distribution.load(asDoubleArray());// w w w. j a v a 2s . com int k = 0; for (SummaryStatistics stats : distribution.getBinStats()) { histogram[k++] = stats.getN(); } return DoubleColumn.create(name() + "[binned]", histogram); }
From source file:util.Statistics.java
public Statistics(List<Integer> list) { scores = intsToDoubles(list);//from ww w . j ava 2 s .co m DescriptiveStatistics dStats = new DescriptiveStatistics(scores); summaryStatistics.put("min", dStats.getMin()); // Minimum summaryStatistics.put("q1", dStats.getPercentile(25)); // Lower Quartile (Q1) summaryStatistics.put("q2", dStats.getPercentile(50)); // Middle Quartile (Median - Q2) summaryStatistics.put("q3", dStats.getPercentile(75)); // High Quartile (Q3) summaryStatistics.put("max", dStats.getMax()); // Maxiumum summaryStatistics.put("mean", dStats.getMean()); // Mean summaryStatistics.put("sd", dStats.getStandardDeviation()); // Standard Deviation EmpiricalDistribution distribution = new EmpiricalDistribution(NUM_BINS); distribution.load(scores); List<SummaryStatistics> binStats = distribution.getBinStats(); double[] upperBounds = distribution.getUpperBounds(); Double lastUpperBound = upperBounds[0]; bins.add(new Pair<Pair<Double, Double>, Long>( new Pair<Double, Double>(summaryStatistics.get("min"), lastUpperBound), binStats.get(0).getN())); for (int i = 1; i < binStats.size(); i++) { bins.add(new Pair<Pair<Double, Double>, Long>(new Pair<Double, Double>(lastUpperBound, upperBounds[i]), binStats.get(i).getN())); lastUpperBound = upperBounds[i]; } if (list.size() > 5 && dStats.getStandardDeviation() > 0) // Only remove outliers if relatively normal { double mean = dStats.getMean(); double stDev = dStats.getStandardDeviation(); NormalDistribution normalDistribution = new NormalDistribution(mean, stDev); Iterator<Integer> listIterator = list.iterator(); double significanceLevel = .50 / list.size(); // Chauvenet's Criterion for Outliers while (listIterator.hasNext()) { int num = listIterator.next(); double pValue = normalDistribution.cumulativeProbability(num); if (pValue < significanceLevel) { outliers.add(num); listIterator.remove(); } } if (list.size() != dStats.getN()) // If and only if outliers have been removed { double[] significantData = intsToDoubles(list); dStats = new DescriptiveStatistics(significantData); summaryStatistics.put("min", dStats.getMin()); summaryStatistics.put("max", dStats.getMax()); summaryStatistics.put("mean", dStats.getMean()); summaryStatistics.put("sd", dStats.getStandardDeviation()); } } }