Examples of GeometricMean

org.apache.commons.math.stat.descriptive.moment.GeometricMean
ycoon.com/geometric_mean.htm"> geometric mean of the available values.
Uses a {@link SumOfLogs} instance to compute sum of logs and returns exp( 1/n (sum of logs) ). Therefore,
- If any of values are < 0, the result is NaN.
- If all values are non-negative and less than Double.POSITIVE_INFINITY, but at least one value is 0, the result is 0.
- If both Double.POSITIVE_INFINITY and Double.NEGATIVE_INFINITY are among the values, the result is NaN.
Note that this implementation is not synchronized. If multiple threads access an instance of this class concurrently, and at least one of the threads invokes the increment() or clear() method, it must be synchronized externally.
@version $Revision: 1006299 $ $Date: 2010-10-10 16:47:17 +0200 (dim. 10 oct. 2010) $
org.apache.commons.math.stat.univariate.moment.GeometricMean
ycoon.com/geometric_mean.htm"> geometric mean of the available values @version $Revision: 1.14 $ $Date: 2003/11/19 03:28:24 $
org.apache.commons.math3.stat.descriptive.moment.GeometricMean
ycoon.com/geometric_mean.htm"> geometric mean of the available values.
Uses a {@link SumOfLogs} instance to compute sum of logs and returns exp( 1/n (sum of logs) ). Therefore,
- If any of values are < 0, the result is NaN.
- If all values are non-negative and less than Double.POSITIVE_INFINITY, but at least one value is 0, the result is 0.
- If both Double.POSITIVE_INFINITY and Double.NEGATIVE_INFINITY are among the values, the result is NaN.
Note that this implementation is not synchronized. If multiple threads access an instance of this class concurrently, and at least one of the threads invokes the increment() or clear() method, it must be synchronized externally.

Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

            sumImpl[i]     = new Sum();
            sumSqImpl[i]   = new SumOfSquares();
            minImpl[i]     = new Min();
            maxImpl[i]     = new Max();
            sumLogImpl[i]  = new SumOfLogs();
            geoMeanImpl[i] = new GeometricMean();
            meanImpl[i]    = new Mean();
        }


        covarianceImpl =
            new VectorialCovariance(k, isCovarianceBiasCorrected);

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

        dest.varianceImpl = source.varianceImpl.copy();
        dest.sumLogImpl = source.sumLogImpl.copy();
        dest.sumsqImpl = source.sumsqImpl.copy();
        if (source.getGeoMeanImpl() instanceof GeometricMean) {
            // Keep geoMeanImpl, sumLogImpl in synch
            dest.geoMeanImpl = new GeometricMean((SumOfLogs) dest.sumLogImpl);
        } else {
            dest.geoMeanImpl = source.geoMeanImpl.copy();
        }
        SecondMoment.copy(source.secondMoment, dest.secondMoment);
        dest.n = source.n;

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

        sum = new Sum();
        sumsq = new SumOfSquares();
        min = new Min();
        max = new Max();
        sumLog = new SumOfLogs();
        geoMean = new GeometricMean();
        secondMoment = new SecondMoment();
    }

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

     * geometric mean </a> of the available values
     * @return The geometricMean, Double.NaN if no values have been added, 
     * or if the productof the available values is less than or equal to 0.
     */
    public double getGeometricMean() {
        return apply(new GeometricMean());
    }

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

            sumImpl[i]     = new Sum();
            sumSqImpl[i]   = new SumOfSquares();
            minImpl[i]     = new Min();
            maxImpl[i]     = new Max();
            sumLogImpl[i]  = new SumOfLogs();
            geoMeanImpl[i] = new GeometricMean();
            meanImpl[i]    = new Mean();
        }


        covarianceImpl =
            new VectorialCovariance(k, isCovarianceBiasCorrected);

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

        dest.varianceImpl = source.varianceImpl.copy();
        dest.sumLogImpl = source.sumLogImpl.copy();
        dest.sumsqImpl = source.sumsqImpl.copy();
        if (source.getGeoMeanImpl() instanceof GeometricMean) {
            // Keep geoMeanImpl, sumLogImpl in synch
            dest.geoMeanImpl = new GeometricMean((SumOfLogs) dest.sumLogImpl);
        } else {
            dest.geoMeanImpl = source.geoMeanImpl.copy();
        }
        SecondMoment.copy(source.secondMoment, dest.secondMoment);
        dest.n = source.n;

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

        sum = new Sum();
        sumsq = new SumOfSquares();
        min = new Min();
        max = new Max();
        sumLog = new SumOfLogs();
        geoMean = new GeometricMean();
        secondMoment = new SecondMoment();
    }

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

     * geometric mean </a> of the available values
     * @return The geometricMean, Double.NaN if no values have been added, 
     * or if the productof the available values is less than or equal to 0.
     */
    public double getGeometricMean() {
        return apply(new GeometricMean());
    }

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

            sumImpl[i]     = new Sum();
            sumSqImpl[i]   = new SumOfSquares();
            minImpl[i]     = new Min();
            maxImpl[i]     = new Max();
            sumLogImpl[i]  = new SumOfLogs();
            geoMeanImpl[i] = new GeometricMean();
            meanImpl[i]    = new Mean();
        }


        covarianceImpl =
            new VectorialCovariance(k, isCovarianceBiasCorrected);

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Examples of org.apache.commons.math.stat.descriptive.moment.GeometricMean

        dest.varianceImpl = source.varianceImpl.copy();
        dest.sumLogImpl = source.sumLogImpl.copy();
        dest.sumsqImpl = source.sumsqImpl.copy();
        if (source.getGeoMeanImpl() instanceof GeometricMean) {
            // Keep geoMeanImpl, sumLogImpl in synch
            dest.geoMeanImpl = new GeometricMean((SumOfLogs) dest.sumLogImpl);
        } else {
            dest.geoMeanImpl = source.geoMeanImpl.copy();
        }
        SecondMoment.copy(source.secondMoment, dest.secondMoment);
        dest.n = source.n;

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