Example usage for java.lang Number doubleValue

Introduction

In this page you can find the example usage for java.lang Number doubleValue.

Prototype

public abstract double doubleValue();

Source Link

Document

Returns the value of the specified number as a double .

Usage

From source file:edu.uci.ics.jung.algorithms.scoring.VoltageScorer.java

/**
 * @see edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorer#update(Object)
 *//*from   ww w  .j  av a 2 s .co  m*/
@Override
public double update(V v) {
    // if it's a voltage source or sink, we're done
    Number source_volts = source_voltages.get(v);
    if (source_volts != null) {
        setOutputValue(v, source_volts.doubleValue());
        return 0.0;
    }
    if (sinks.contains(v)) {
        setOutputValue(v, 0.0);
        return 0.0;
    }

    Collection<E> edges = graph.getInEdges(v);
    double voltage_sum = 0;
    double weight_sum = 0;
    for (E e : edges) {
        int incident_count = getAdjustedIncidentCount(e);
        for (V w : graph.getIncidentVertices(e)) {
            if (!w.equals(v) || hyperedges_are_self_loops) {
                double weight = getEdgeWeight(w, e).doubleValue() / incident_count;
                voltage_sum += getCurrentValue(w).doubleValue() * weight;
                weight_sum += weight;
            }
        }
        //            V w = graph.getOpposite(v, e);
        //            double weight = getEdgeWeight(w,e).doubleValue();
        //            voltage_sum += getCurrentValue(w).doubleValue() * weight;
        //            weight_sum += weight;
    }

    // if either is 0, new value is 0
    if (voltage_sum == 0 || weight_sum == 0) {
        setOutputValue(v, 0.0);
        return getCurrentValue(v).doubleValue();
    }

    setOutputValue(v, voltage_sum / weight_sum);
    return Math.abs(getCurrentValue(v).doubleValue() - voltage_sum / weight_sum);
}

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From source file:de.tudarmstadt.ukp.dkpro.tc.svmhmm.writer.SVMHMMDataWriter.java

@Override
public void write(File aOutputDirectory, FeatureStore featureStore, boolean aUseDenseInstances,
        String aLearningMode, boolean applyWeighting) throws Exception {
    // map features to feature numbers
    BidiMap featureNameToFeatureNumberMapping = SVMHMMUtils
            .mapVocabularyToIntegers(featureStore.getFeatureNames());

    // prepare output file
    File outputFile = new File(aOutputDirectory, new SVMHMMAdapter()
            .getFrameworkFilename(TCMachineLearningAdapter.AdapterNameEntries.featureVectorsFile));

    BufferedWriter bf = new BufferedWriter(new FileWriter(outputFile));
    PrintWriter pw = new PrintWriter(bf);

    log.info("Start writing features to file " + outputFile.getAbsolutePath());

    log.debug("Total instances: " + featureStore.getNumberOfInstances());
    log.debug("Feature vector size: " + featureStore.getFeatureNames().size());

    if (featureStore instanceof SparseFeatureStore) {
        SparseFeatureStore sparseFeatureStore = (SparseFeatureStore) featureStore;
        log.debug("Non-null feature sparsity ratio: " + sparseFeatureStore.getFeatureSparsityRatio());
    }/*w  w w .ja  v a2s .  c  o m*/

    for (int i = 0; i < featureStore.getNumberOfInstances(); i++) {
        Instance instance;

        // getInstance() is time-consuming for dense features
        // check whether can we use only sparse features
        if (featureStore instanceof SparseFeatureStore) {
            instance = ((SparseFeatureStore) featureStore).getInstanceSparseFeatures(i);
        } else {
            instance = featureStore.getInstance(i);
        }

        // placeholder for original token
        String originalToken = null;

        // other "features" - meta data features that will be stored in the comment
        SortedMap<String, String> metaDataFeatures = new TreeMap<>();

        // feature values
        SortedMap<Integer, Number> featureValues = new TreeMap<>();
        for (Feature f : instance.getFeatures()) {
            String featureName = f.getName();
            Object featureValue = f.getValue();

            // we ignore null feature values
            if (featureValue == null) {
                continue;
            }

            // get original token stored in OriginalToken feature
            if (OriginalTextHolderFeatureExtractor.ORIGINAL_TEXT.equals(featureName)) {
                // if original token/text was multi line, join it to a single line
                //                    originalToken = ((String) featureValue).replaceAll("\\n", " ");
                originalToken = (String) featureValue;
                continue;
            }

            // handle other possible features as metadata?
            if (isMetaDataFeature(featureName)) {
                metaDataFeatures.put(featureName, (String) featureValue);
                continue;
            }

            // not allow other non-number features
            if (!(featureValue instanceof Number)) {
                log.debug("Only features with number values are allowed, but was " + f);
                continue;
            }

            // in case the feature store produced dense feature vector with zeros for
            // non-present features, we ignore zero value features here
            Number featureValueNumber = (Number) featureValue;
            if (Math.abs(featureValueNumber.doubleValue() - 0d) < EPS) {
                continue;
            }

            // get number and int value of the feature
            Integer featureNumber = (Integer) featureNameToFeatureNumberMapping.get(featureName);

            featureValues.put(featureNumber, featureValueNumber);
        }

        // print formatted output: label name and sequence id
        pw.printf(Locale.ENGLISH, "%s qid:%d ", instance.getOutcome(), instance.getSequenceId());

        // print sorted features
        for (Map.Entry<Integer, Number> entry : featureValues.entrySet()) {
            if (entry.getValue() instanceof Double) {
                // format double on 8 decimal places
                pw.printf(Locale.ENGLISH, "%d:%.8f ", entry.getKey(), entry.getValue().doubleValue());
            } else {
                // format as integer
                pw.printf(Locale.ENGLISH, "%d:%d ", entry.getKey(), entry.getValue().intValue());
            }
        }

        // print original token and label as comment
        pw.printf(Locale.ENGLISH, "# %s %d %s ", instance.getOutcome(), instance.getSequenceId(),
                (originalToken != null) ? (URLEncoder.encode(originalToken, "utf-8")) : "");

        // print meta-data features at the end
        for (Map.Entry<String, String> entry : metaDataFeatures.entrySet()) {
            pw.printf(" %s:%s", URLEncoder.encode(entry.getKey(), "utf-8"),
                    URLEncoder.encode(entry.getValue(), "utf-8"));
        }
        // new line at the end
        pw.println();
    }

    IOUtils.closeQuietly(pw);

    // writing feature mapping
    File mappingFile = new File(aOutputDirectory, "featuresIntToNames_forDebug.txt");
    SVMHMMUtils.saveMappingTextFormat(featureNameToFeatureNumberMapping, mappingFile);

    log.info("Finished writing features to file " + outputFile.getAbsolutePath());
}

---

From source file:it.unibo.alchemist.model.implementations.positions.LatLongPosition.java

/**
 * @param lat//from   w w  w  .  ja  va  2  s.c o m
 *            latitude
 * @param lon
 *            longitude
 */
public LatLongPosition(final Number lat, final Number lon) {
    this(lat.doubleValue(), lon.doubleValue());
}

---

From source file:com.tibbo.linkserver.plugin.device.file.item.NumericItem.java

private int toInt(Number value) {
    if (value instanceof Double) {
        return (new BigDecimal(value.doubleValue())).setScale(0, RoundingMode.HALF_UP).intValue();
    }/*from w  ww.ja va2s.  co  m*/
    if (value instanceof Float) {
        return (new BigDecimal(value.floatValue())).setScale(0, RoundingMode.HALF_UP).intValue();
    }
    if (value instanceof BigDecimal) {
        return ((BigDecimal) value).setScale(0, RoundingMode.HALF_UP).intValue();
    } else {
        return value.intValue();
    }
}

---

From source file:com.haulmont.chile.core.datatypes.impl.AdaptiveNumberDatatype.java

protected Number requestedType(Number number) {
    if (type.equals(Integer.class))
        return number.intValue();
    if (type.equals(Long.class))
        return number.longValue();
    if (type.equals(Double.class))
        return number.doubleValue();
    if (type.equals(Float.class))
        return number.floatValue();
    return number;
}

---

From source file:fr.ens.transcriptome.aozan.util.StatisticsUtils.java

/**
 * Add values in dataset./*from   ww  w  . ja  v a 2s .  co m*/
 * @param number new values to put in dataset
 */
public void addValues(final Number number) {
    final Double val = number.doubleValue();

    if (val != null) {
        if (!val.isInfinite()) {
            this.ds.addValue(val);
        }
    }
}

---

From source file:org.kalypso.ogc.sensor.diagview.jfreechart.CurveDataset.java

/**
 * @see org.jfree.data.xy.XYDataset#getXValue(int, int)
 *///from   w  w w.j  a  v  a2  s. com
@Override
public double getXValue(final int series, final int item) {
    final Number x = getX(series, item);

    return x == null ? Double.NaN : x.doubleValue();
}

---

From source file:org.kalypso.ogc.sensor.diagview.jfreechart.CurveDataset.java

/**
 * @see org.jfree.data.xy.XYDataset#getYValue(int, int)
 *//*from www .  j a  va 2s  .c o m*/
@Override
public double getYValue(final int series, final int item) {
    final Number y = getY(series, item);

    return y == null ? Double.NaN : y.doubleValue();
}

---

From source file:com.github.brandtg.StlDecomposition.java

public StlResult decompose(List<Long> times, List<Number> series) {
    double[] timesArray = new double[times.size()];
    double[] seriesArray = new double[series.size()];

    int idx = 0;/*from w ww.j  a v a2s .co m*/
    for (Long time : times) {
        timesArray[idx++] = time;
    }

    idx = 0;
    for (Number value : series) {
        seriesArray[idx++] = value.doubleValue();
    }

    return decompose(timesArray, seriesArray);
}

---

From source file:net.sf.dynamicreports.design.transformation.chartcustomizer.PercentageGroupedCategoryDataset.java

@Override
public Number getValue(int row, int column) {
    double total = 0;
    String group1 = StringUtils.substringBefore((String) getRowKey(row),
            GroupedStackedBarRendererCustomizer.GROUP_SERIES_KEY);
    for (int i = 0; i < getRowCount(); i++) {
        Number value = dataset.getValue(i, column);
        if (value != null) {
            String group2 = StringUtils.substringBefore((String) getRowKey(i),
                    GroupedStackedBarRendererCustomizer.GROUP_SERIES_KEY);
            if (group1.equals(group2)) {
                total += value.doubleValue();
            }//from w w  w. j a va 2s  .  co m
        }
    }
    Number value = dataset.getValue(row, column);
    if (value == null) {
        return 0;
    }
    double actual = value.doubleValue();
    if (total > 0) {
        return actual / total * 100;
    }
    return 0;
}

---

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