Example usage for org.apache.commons.lang3 ArrayUtils toPrimitive

Introduction

In this page you can find the example usage for org.apache.commons.lang3 ArrayUtils toPrimitive.

Prototype

public static boolean[] toPrimitive(final Boolean[] array) 

Source Link

Document

Converts an array of object Booleans to primitives.

This method returns null for a null input array.

Usage

From source file:com.vsthost.rnd.commons.math.ext.linear.DMatrixUtils.java

/**
 * Get the order of the specified elements in descending or ascending order.
 *
 * @param values A vector of double values.
 * @param indices The indices which will be considered for ordering.
 * @param descending Flag indicating if we go descending or not.
 * @return A vector of indices sorted in the provided order.
 *///from   w ww  .  jav a 2  s.c o m
public static int[] getOrder(double[] values, int[] indices, boolean descending) {
    // Create an index series:
    Integer[] opIndices = ArrayUtils.toObject(indices);

    // Sort indices:
    Arrays.sort(opIndices, new Comparator<Integer>() {
        @Override
        public int compare(Integer o1, Integer o2) {
            if (descending) {
                return Double.compare(values[o2], values[o1]);
            } else {
                return Double.compare(values[o1], values[o2]);
            }
        }
    });

    return ArrayUtils.toPrimitive(opIndices);
}

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From source file:kieker.tools.opad.timeseries.forecast.AbstractRForecaster.java

private ForecastResult forecastWithR(final int numForecastSteps) throws InvalidREvaluationResultException {
    final ITimeSeries<Double> history = this.getTsOriginal();
    final ITimeSeries<Double> tsForecast = this.prepareForecastTS();

    final String varNameValues = RBridgeControl.uniqueVarname();
    final String varNameModel = RBridgeControl.uniqueVarname();
    final String varNameForecast = RBridgeControl.uniqueVarname();

    final List<Double> allHistory = new ArrayList<Double>(history.getValues());
    final Double[] histValuesNotNull = AbstractRForecaster.removeNullValues(allHistory);
    final double[] values = ArrayUtils.toPrimitive(histValuesNotNull);

    double fcQuality = Double.NaN;
    // 0. Assign values to temporal variable

    AbstractRForecaster.RBRIDGE.assign(varNameValues, values);

    if (history.getFrequency() != 0) {
        if (this.strategy != ForecastMethod.ARIMA) {
            // frequency for time series object in R --> needed for MASE calculation.
            AbstractRForecaster.RBRIDGE.toTS(varNameValues, history.getFrequency());
        } else {// ww  w .  ja va2 s  .  c o m
            AbstractRForecaster.RBRIDGE.toTS(varNameValues);
        }
    }

    // 1. Compute stochastic model for forecast

    if (this.modelFunc == null) {
        // In this case, the values are the model ...
        AbstractRForecaster.RBRIDGE.assign(varNameModel, values);
        if (history.getFrequency() != 0) {
            if (this.strategy != ForecastMethod.ARIMA) {
                // frequency for time series object in R --> needed for MASE calculation.
                AbstractRForecaster.RBRIDGE.toTS(varNameValues, history.getFrequency());
            } else {
                AbstractRForecaster.RBRIDGE.toTS(varNameValues);
            }
        }
    } else {
        final String[] additionalModelParams = this.getModelFuncParams();

        final StringBuffer params = new StringBuffer();
        params.append(varNameValues);
        if (null != additionalModelParams) {
            for (final String param : additionalModelParams) {
                params.append(',');
                params.append(param);
            }
        }
        AbstractRForecaster.RBRIDGE
                .evalWithR(String.format("%s <- %s(%s)", varNameModel, this.modelFunc, params));
    }
    // remove temporal variable:
    AbstractRForecaster.RBRIDGE.evalWithR(String.format("rm(%s)", varNameValues));

    // 2. Perform forecast based on stochastic model

    if ((this.getConfidenceLevel() == 0) || !this.supportsConfidence()) {
        AbstractRForecaster.RBRIDGE.evalWithR(String.format("%s <- %s(%s, h=%d)", varNameForecast,
                this.forecastFunc, varNameModel, numForecastSteps));
    } else {
        AbstractRForecaster.RBRIDGE.evalWithR(String.format("%s <- %s(%s, h=%d, level=c(%d))", varNameForecast,
                this.forecastFunc, varNameModel, numForecastSteps, this.getConfidenceLevel()));
    }

    final double[] forecastValues = AbstractRForecaster.RBRIDGE
            .eDblArr(this.forecastOperationOnResult(varNameForecast));

    // 3. Calculate Forecast Quality Metric

    if (forecastValues.length > 1) {
        if ((this.modelFunc == null)) { // Re-enable when TBATS included: || (this.strategy == ForecastMethod.TBATS)
            fcQuality = AbstractRForecaster.RBRIDGE.eDbl("accuracy(" + varNameForecast + ")[6]");
        } else {
            fcQuality = AbstractRForecaster.RBRIDGE.eDbl("accuracy(" + varNameModel + ")[6]");
        }
    }

    tsForecast.appendAll(ArrayUtils.toObject(forecastValues));
    final ITimeSeries<Double> tsLower;
    final ITimeSeries<Double> tsUpper;

    if ((this.getConfidenceLevel() == 0) || !this.supportsConfidence()) {
        tsLower = tsForecast;
        tsUpper = tsForecast;
    } else {
        final double[] lowerValues = AbstractRForecaster.RBRIDGE
                .eDblArr(this.lowerOperationOnResult(varNameForecast));
        final double[] upperValues = AbstractRForecaster.RBRIDGE
                .eDblArr(this.upperOperationOnResult(varNameForecast));
        tsLower = this.prepareForecastTS();
        tsLower.appendAll(ArrayUtils.toObject(lowerValues));
        tsUpper = this.prepareForecastTS();
        tsUpper.appendAll(ArrayUtils.toObject(upperValues));
    }

    // remove temporal variable:
    AbstractRForecaster.RBRIDGE.evalWithR(String.format("rm(%s)", varNameModel));
    AbstractRForecaster.RBRIDGE.evalWithR(String.format("rm(%s)", varNameValues));
    AbstractRForecaster.RBRIDGE.evalWithR(String.format("rm(%s)", varNameForecast));

    return new ForecastResult(tsForecast, this.getTsOriginal(), this.getConfidenceLevel(), fcQuality, tsLower,
            tsUpper, this.strategy);
}

---

From source file:com.github.jessemull.microflex.util.IntegerUtil.java

/**
 * Converts a list of integers to an array of bytes.
 * @param    List<Integer>    list of integers
 * @return                    array of bytes
 *//*  w ww  .jav a  2s.  c o  m*/
public static byte[] toByteArray(List<Integer> list) {

    for (Integer val : list) {
        if (!OverFlowUtil.byteOverflow(val)) {
            OverFlowUtil.overflowError(val);
        }
    }

    return ArrayUtils.toPrimitive(list.toArray(new Byte[list.size()]));

}

---

From source file:com.github.jessemull.microflex.util.DoubleUtil.java

/**
 * Converts a list of doubles to an array of shorts.
 * @param    List<Double>    list of doubles
 * @return                   array of shorts
 *//* w  w  w.  j av a2s  .c o m*/
public static short[] toShortArray(List<Double> list) {

    for (Double val : list) {
        if (!OverFlowUtil.shortOverflow(val)) {
            OverFlowUtil.overflowError(val);
        }
    }

    return ArrayUtils.toPrimitive(list.toArray(new Short[list.size()]));

}

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From source file:dynamicswordskills.entity.EntityLeapingBlow.java

@Override
public void writeEntityToNBT(NBTTagCompound compound) {
    super.writeEntityToNBT(compound);
    compound.setFloat("damage", damage);
    compound.setInteger("level", level);
    compound.setInteger("lifespan", lifespan);
    compound.setIntArray("affectedEntities",
            ArrayUtils.toPrimitive(affectedEntities.toArray(new Integer[affectedEntities.size()])));
}

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From source file:ijfx.core.overlay.OverlayStatService.java

public <T extends RealType<T>> PixelStatistics getPixelStatistics(Overlay overlay,
        RandomAccessibleInterval<T> rai) {
    RandomAccess<T> randomAccess = rai.randomAccess();
    PixelMeasurer<T> measurer = new PixelMeasurer<>(randomAccess);
    overlayDrawingService.drawOverlay(overlay, OverlayDrawingService.FILLER, measurer);
    return new PixelStatisticsBase(
            new DescriptiveStatistics(ArrayUtils.toPrimitive(measurer.getValuesAsArray())));
}

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From source file:gephi.spade.panel.FCSOperations.java

/**
 * Populates selectedEvents//w w w.  jav  a 2s . c  o  m
 */
private Array2DRowRealMatrix populateSelectedEvents(int[] selectedClust) {
    int clusterColumn = fcsInputFile.getChannelIdFromShortName("cluster");
    ArrayList<Integer> columns = new ArrayList<Integer>();

    //Populate selectedEventsInitial                        
    for (int i = 0; i < eventsInitl.getColumnDimension(); i++) {
        int cluster = (int) eventsInitl.getEntry(clusterColumn, i);
        for (int j = 0; j < selectedClust.length; j++) {
            if (cluster == selectedClust[j]) {
                columns.add(i);
            }
        }
    }

    int[] rows = new int[eventsInitl.getRowDimension()];
    for (int i = 0; i < rows.length; i++) {
        rows[i] = i;
    }

    return (Array2DRowRealMatrix) eventsInitl.getSubMatrix(rows,
            ArrayUtils.toPrimitive(columns.toArray(new Integer[0])));
}

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From source file:net.larry1123.elec.util.test.config.AbstractConfigTest.java

public void FloatArrayTest(String fieldName, Field testField) {
    try {//from  w  w w  .  ja v a  2s.co m
        float[] testFieldValue = ArrayUtils.toPrimitive((Float[]) testField.get(getConfigBase()));
        Assert.assertTrue(ArrayUtils.isEquals(getPropertiesFile().getFloatArray(fieldName), testFieldValue));
    } catch (IllegalAccessException e) {
        assertFailFieldError(fieldName);
    }
}

---

From source file:com.github.jessemull.microflex.util.BigIntegerUtil.java

/**
 * Converts a list of BigIntegers to an array of integers.
 * @param    List<BigInteger>    list of BigIntegers
 * @return                       array of integers
 *//* w  w w  . ja  v  a 2 s. c om*/
public static int[] toIntArray(List<BigInteger> list) {

    for (BigInteger val : list) {
        if (!OverFlowUtil.intOverflow(val)) {
            OverFlowUtil.overflowError(val);
        }
    }

    return ArrayUtils.toPrimitive(list.toArray(new Integer[list.size()]));

}

---

From source file:com.github.jessemull.microflex.util.BigDecimalUtil.java

/**
 * Converts a list of BigDecimals to an array of integers.
 * @param    List<BigDecimal>    list of BigDecimals
 * @return                       array of integers
 *//*from   w  ww.  j a v a 2 s . co m*/
public static int[] toIntArray(List<BigDecimal> list) {

    for (BigDecimal val : list) {
        if (!OverFlowUtil.intOverflow(val)) {
            OverFlowUtil.overflowError(val);
        }
    }

    return ArrayUtils.toPrimitive(list.toArray(new Integer[list.size()]));

}

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