Documentation of 'org.ujmp.core.util.MathUtil' Java class
MathUtil
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org.ujmp.core.util

Class MathUtil


  • public abstract class MathUtil
extends java.lang.Object

    • Field Summary

      Fields 
      Modifier and Type Field and Description
      static double EPSILON 
      static double LOG10 
      static double LOG2 
      static double ROOT2PI 

    • Constructor Summary

      Constructors 
      Constructor and Description
      MathUtil() 

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method and Description
      static double accuracy(Matrix confusionMatrix) 
      static double artanh(double x) 
      static long binomialCoefficient(int n, int k) 
      static java.math.BigInteger binomialCoefficientBig(int n, int k) 
      static double[] collectionToDoubleArray(java.util.Collection<? extends java.lang.Number> numbers) 
      static int[] collectionToIntArray(java.util.Collection<? extends java.lang.Number> numbers) 
      static long[] collectionToLongArray(java.util.Collection<? extends java.lang.Number> numbers) 
      static java.math.BigDecimal divide(java.math.BigDecimal v1, java.math.BigDecimal v2) 
      static boolean equals(java.lang.Object o1, java.lang.Object o2) 
      static double f1Measure(double precision, double recall) 
      static double f1Measure(double tp, double fp, double fn) 
      static double f1Measure(Matrix confusionMatrix, long catIndex) 
      static double f1MeasureMacro(Matrix confusionMatrix) 
      static double f1MeasureMicro(Matrix confusionMatrix) 
      static long factorial(int n) 
      static java.math.BigInteger factorialBig(int n) 
      static double fallout(double tn, double fp) 
      static double falseNegativeRate(double fn, double tp) 
      static double falsePositiveRate(double fp, double tn) 
      static double fBetaMeasure(double beta, double precision, double recall) 
      static double gammaln(double x)
      from numerical recipes in c (p.
      static double gauss(double mean, double sigma, double x) 
      static java.math.BigDecimal getBigDecimal(java.lang.Object o) 
      static java.math.BigInteger getBigInteger(java.lang.Object o) 
      static boolean getBoolean(java.lang.Object o) 
      static byte getByte(java.lang.Object o) 
      static char getChar(java.lang.Object o) 
      static java.util.Date getDate(java.lang.Object o) 
      static double getDouble(java.lang.Object o) 
      static float getFloat(java.lang.Object o) 
      static int getInt(java.lang.Object o) 
      static long getLong(java.lang.Object o) 
      static Matrix getMatrix(java.lang.Object o) 
      static java.lang.Object getObject(java.lang.Object o) 
      static java.lang.Object getPreferredObject(java.lang.Object o) 
      static java.util.Random getRandom() 
      static long getSeed() 
      static short getShort(java.lang.Object o) 
      static boolean greater(java.math.BigInteger i1, java.math.BigInteger i2) 
      static java.lang.String guid() 
      static int hash(int h) 
      static int hexToInt(java.lang.String hex) 
      static double hypot(double a, double b)
      sqrt(a^2 + b^2) without under/overflow.
      static double ignoreNaN(double v) 
      static long[] index2PosColumnMajor(long[] size, long index) 
      static long[] index2PosRowMajor(long[] size, long index) 
      static java.lang.String intToHex(int i) 
      static boolean isDigit(char c) 
      static boolean isDiscrete(double number) 
      static boolean isEventHappening(double probability) 
      static boolean isGreater(java.math.BigDecimal v1, java.math.BigDecimal v2) 
      static boolean isNaNOrInfinite(double v) 
      static boolean isNaNOrInfinite(java.lang.Object o) 
      static boolean isNull(java.lang.Object value) 
      static boolean isSign(char c) 
      static boolean isSmaller(java.math.BigDecimal v1, java.math.BigDecimal v2) 
      static double log10(double d) 
      static double log2(double d) 
      static double[] logToProbs(double[] logs) 
      static int longToInt(long value) 
      static int longToIntClip(long value) 
      static double max(double[] values) 
      static int max(int[] values) 
      static java.lang.String md5(byte[] data) 
      static java.lang.String md5(java.io.File file) 
      static java.lang.String md5(java.io.Serializable o) 
      static java.lang.String md5(java.lang.String text) 
      static int min(int[] values) 
      static java.math.BigDecimal minus(java.math.BigDecimal v1, java.math.BigDecimal v2) 
      static double[] minus(double[] values, double value) 
      static double negativePredictiveValue(double tn, double fn) 
      static boolean nextBoolean() 
      static double nextDouble() 
      static double nextDouble(double min, double max) 
      static double nextGaussian() 
      static double nextGaussian(double mean, double sigma) 
      static int nextInteger(int max) 
      static int nextInteger(int min, int max)
      Returns a random value in the desired interval
      static double norminv(double p, double mu, double sigma) 
      static java.math.BigDecimal plus(java.math.BigDecimal v1, java.math.BigDecimal v2) 
      static double[] plus(double[] values, double value) 
      static long pos2IndexColumnMajor(long[] size, long[] pos) 
      static long pos2IndexRowMajor(long[] size, long[] pos) 
      static double positivePredictiveValue(double tp, double fp) 
      static double precision(double tp, double fp) 
      static double precision(Matrix confusionMatrix, long catIndex) 
      static double precisionMacro(Matrix confusionMatrix) 
      static double precisionMicro(Matrix confusionMatrix) 
      static java.util.List<java.lang.Integer> randPermInt(int startInclusive, int endExclusive) 
      static java.util.List<java.lang.Long> randPermLong(long startInclusive, long endExclusive) 
      static double recall(double tp, double fn) 
      static double recall(Matrix confusionMatrix, long catIndex) 
      static double recallMacro(Matrix confusionMatrix) 
      static double recallMicro(Matrix confusionMatrix) 
      static double round(double value, int decimals) 
      static int search(long[] values, int fromIndex, int toIndex, long key) 
      static double sensitivity(double tp, double fn) 
      static double[] sequenceDouble(double startInclusive, double endExclusive) 
      static double[] sequenceDouble(double startInclusive, double endExclusive, double stepsize) 
      static int[] sequenceInt(int startInclusive, int endExclusive) 
      static java.util.List<java.lang.Double> sequenceListDouble(double startInclusive, double endExclusive) 
      static java.util.List<java.lang.Double> sequenceListDouble(double startInclusive, double endExclusive, double stepsize) 
      static java.util.List<java.lang.Integer> sequenceListInt(int startInclusive, int endExclusive) 
      static java.util.List<java.lang.Long> sequenceListLong(long startInclusive, long endExclusive) 
      static java.util.List<java.lang.Long> sequenceListLong(long startInclusive, long endExclusive, long stepsize) 
      static long[] sequenceLong(long startInclusive, long endExclusive) 
      static long[] sequenceLong(long startInclusive, long endExclusive, long stepsize) 
      static void setSeed(long seed) 
      static boolean smaller(java.math.BigInteger i1, java.math.BigInteger i2) 
      static double specificity(double tn, double fp) 
      static java.math.BigDecimal sqrt(java.math.BigDecimal n) 
      static java.math.BigDecimal times(java.math.BigDecimal v1, java.math.BigDecimal v2) 
      static double[] toDoubleArray(int... intArray) 
      static double[][] toDoubleArray(int[]... intArray) 
      static java.util.List<java.lang.Double> toDoubleList(double[] numbers) 
      static java.util.List<java.lang.Double> toDoubleList(int[] numbers) 
      static java.util.List<java.lang.Double> toDoubleList(long[] numbers) 
      static int[] toIntArray(long... coordinates) 
      static long[] toLongArray(int... coordinates) 
      static java.util.List<java.lang.Long> toLongList(int[] numbers) 
      static java.util.List<java.lang.Long> toLongList(long[] numbers) 
      static long totalCorrect(Matrix confusionMatrix) 
      static double trueNegativeRate(double tn, double fp) 
      static boolean xor(boolean b1, boolean b2) 

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • ROOT2PI

        public static final double ROOT2PI

      • LOG10

        public static final double LOG10

      • LOG2

        public static final double LOG2

    • Constructor Detail

      • MathUtil

        public MathUtil()

    • Method Detail

      • getRandom

        public static java.util.Random getRandom()

      • md5

        public static java.lang.String md5(java.lang.String text)
                            throws java.security.NoSuchAlgorithmException
        Throws:
        java.security.NoSuchAlgorithmException

      • search

        public static final int search(long[] values,
                               int fromIndex,
                               int toIndex,
                               long key)

      • md5

        public static java.lang.String md5(byte[] data)

      • md5

        public static java.lang.String md5(java.io.File file)
                            throws java.security.NoSuchAlgorithmException,
                                   java.io.IOException
        Throws:
        java.security.NoSuchAlgorithmException
        java.io.IOException

      • md5

        public static java.lang.String md5(java.io.Serializable o)
                            throws java.security.NoSuchAlgorithmException,
                                   java.io.IOException
        Throws:
        java.security.NoSuchAlgorithmException
        java.io.IOException

      • xor

        public static final boolean xor(boolean b1,
                                boolean b2)

      • logToProbs

        public static double[] logToProbs(double[] logs)

      • plus

        public static double[] plus(double[] values,
                            double value)

      • minus

        public static double[] minus(double[] values,
                             double value)

      • getSeed

        public static final long getSeed()

      • round

        public static final double round(double value,
                                 int decimals)

      • setSeed

        public static void setSeed(long seed)

      • log2

        public static final double log2(double d)

      • log10

        public static final double log10(double d)

      • hash

        public static int hash(int h)

      • gauss

        public static final double gauss(double mean,
                                 double sigma,
                                 double x)

      • artanh

        public static final double artanh(double x)

      • nextGaussian

        public static final double nextGaussian(double mean,
                                        double sigma)

      • nextGaussian

        public static final double nextGaussian()

      • nextDouble

        public static final double nextDouble(double min,
                                      double max)

      • nextInteger

        public static final int nextInteger(int min,
                                    int max)
        Returns a random value in the desired interval
        Parameters:
        min - minimum value (inclusive)
        max - maximum value (exclusive)
        Returns:
        a random value

      • nextInteger

        public static final int nextInteger(int max)

      • isEventHappening

        public static boolean isEventHappening(double probability)

      • nextBoolean

        public static boolean nextBoolean()

      • nextDouble

        public static double nextDouble()

      • ignoreNaN

        public static final double ignoreNaN(double v)

      • isNaNOrInfinite

        public static final boolean isNaNOrInfinite(double v)

      • isNaNOrInfinite

        public static final boolean isNaNOrInfinite(java.lang.Object o)

      • getMatrix

        public static final Matrix getMatrix(java.lang.Object o)

      • getDate

        public static final java.util.Date getDate(java.lang.Object o)

      • getDouble

        public static final double getDouble(java.lang.Object o)

      • hypot

        public static final double hypot(double a,
                                 double b)
        sqrt(a^2 + b^2) without under/overflow.

      • collectionToLongArray

        public static final long[] collectionToLongArray(java.util.Collection<? extends java.lang.Number> numbers)

      • collectionToDoubleArray

        public static final double[] collectionToDoubleArray(java.util.Collection<? extends java.lang.Number> numbers)

      • collectionToIntArray

        public static final int[] collectionToIntArray(java.util.Collection<? extends java.lang.Number> numbers)

      • toLongList

        public static java.util.List<java.lang.Long> toLongList(long[] numbers)

      • toLongList

        public static java.util.List<java.lang.Long> toLongList(int[] numbers)

      • toDoubleList

        public static java.util.List<java.lang.Double> toDoubleList(double[] numbers)

      • toDoubleList

        public static java.util.List<java.lang.Double> toDoubleList(int[] numbers)

      • toDoubleList

        public static java.util.List<java.lang.Double> toDoubleList(long[] numbers)

      • toDoubleArray

        public static double[] toDoubleArray(int... intArray)

      • toDoubleArray

        public static double[][] toDoubleArray(int[]... intArray)

      • sequenceListLong

        public static java.util.List<java.lang.Long> sequenceListLong(long startInclusive,
                                                              long endExclusive)

      • sequenceListLong

        public static java.util.List<java.lang.Long> sequenceListLong(long startInclusive,
                                                              long endExclusive,
                                                              long stepsize)

      • sequenceListDouble

        public static java.util.List<java.lang.Double> sequenceListDouble(double startInclusive,
                                                                  double endExclusive)

      • sequenceListDouble

        public static java.util.List<java.lang.Double> sequenceListDouble(double startInclusive,
                                                                  double endExclusive,
                                                                  double stepsize)

      • sequenceListInt

        public static java.util.List<java.lang.Integer> sequenceListInt(int startInclusive,
                                                                int endExclusive)

      • sequenceLong

        public static long[] sequenceLong(long startInclusive,
                                  long endExclusive)

      • sequenceLong

        public static long[] sequenceLong(long startInclusive,
                                  long endExclusive,
                                  long stepsize)

      • sequenceDouble

        public static double[] sequenceDouble(double startInclusive,
                                      double endExclusive)

      • sequenceDouble

        public static double[] sequenceDouble(double startInclusive,
                                      double endExclusive,
                                      double stepsize)

      • sequenceInt

        public static int[] sequenceInt(int startInclusive,
                                int endExclusive)

      • randPermLong

        public static java.util.List<java.lang.Long> randPermLong(long startInclusive,
                                                          long endExclusive)

      • randPermInt

        public static java.util.List<java.lang.Integer> randPermInt(int startInclusive,
                                                            int endExclusive)

      • equals

        public static boolean equals(java.lang.Object o1,
                             java.lang.Object o2)

      • sensitivity

        public static double sensitivity(double tp,
                                 double fn)

      • specificity

        public static double specificity(double tn,
                                 double fp)

      • positivePredictiveValue

        public static double positivePredictiveValue(double tp,
                                             double fp)

      • negativePredictiveValue

        public static double negativePredictiveValue(double tn,
                                             double fn)

      • falsePositiveRate

        public static double falsePositiveRate(double fp,
                                       double tn)

      • falseNegativeRate

        public static double falseNegativeRate(double fn,
                                       double tp)

      • recall

        public static double recall(double tp,
                            double fn)

      • precision

        public static double precision(double tp,
                               double fp)

      • fallout

        public static double fallout(double tn,
                             double fp)

      • trueNegativeRate

        public static double trueNegativeRate(double tn,
                                      double fp)

      • f1Measure

        public static double f1Measure(double precision,
                               double recall)

      • fBetaMeasure

        public static double fBetaMeasure(double beta,
                                  double precision,
                                  double recall)

      • getPreferredObject

        public static java.lang.Object getPreferredObject(java.lang.Object o)

      • getBoolean

        public static boolean getBoolean(java.lang.Object o)

      • getByte

        public static byte getByte(java.lang.Object o)

      • getBigInteger

        public static java.math.BigInteger getBigInteger(java.lang.Object o)

      • getBigDecimal

        public static java.math.BigDecimal getBigDecimal(java.lang.Object o)

      • getChar

        public static char getChar(java.lang.Object o)

      • getFloat

        public static float getFloat(java.lang.Object o)

      • getObject

        public static java.lang.Object getObject(java.lang.Object o)

      • getInt

        public static int getInt(java.lang.Object o)

      • getLong

        public static long getLong(java.lang.Object o)

      • getShort

        public static short getShort(java.lang.Object o)

      • toIntArray

        public static int[] toIntArray(long... coordinates)

      • toLongArray

        public static long[] toLongArray(int... coordinates)

      • isNull

        public static boolean isNull(java.lang.Object value)

      • norminv

        public static double norminv(double p,
                             double mu,
                             double sigma)

      • f1Measure

        public static double f1Measure(double tp,
                               double fp,
                               double fn)

      • factorial

        public static final long factorial(int n)

      • factorialBig

        public static final java.math.BigInteger factorialBig(int n)

      • binomialCoefficient

        public static final long binomialCoefficient(int n,
                                             int k)

      • binomialCoefficientBig

        public static final java.math.BigInteger binomialCoefficientBig(int n,
                                                                int k)

      • greater

        public static final boolean greater(java.math.BigInteger i1,
                                    java.math.BigInteger i2)

      • smaller

        public static final boolean smaller(java.math.BigInteger i1,
                                    java.math.BigInteger i2)

      • max

        public static int max(int[] values)

      • max

        public static double max(double[] values)

      • min

        public static int min(int[] values)

      • plus

        public static final java.math.BigDecimal plus(java.math.BigDecimal v1,
                                              java.math.BigDecimal v2)

      • minus

        public static final java.math.BigDecimal minus(java.math.BigDecimal v1,
                                               java.math.BigDecimal v2)

      • times

        public static final java.math.BigDecimal times(java.math.BigDecimal v1,
                                               java.math.BigDecimal v2)

      • divide

        public static final java.math.BigDecimal divide(java.math.BigDecimal v1,
                                                java.math.BigDecimal v2)

      • isGreater

        public static boolean isGreater(java.math.BigDecimal v1,
                                java.math.BigDecimal v2)

      • isSmaller

        public static boolean isSmaller(java.math.BigDecimal v1,
                                java.math.BigDecimal v2)

      • sqrt

        public static final java.math.BigDecimal sqrt(java.math.BigDecimal n)

      • gammaln

        public static final double gammaln(double x)
        from numerical recipes in c (p. 214)

      • pos2IndexRowMajor

        public static final long pos2IndexRowMajor(long[] size,
                                           long[] pos)

      • pos2IndexColumnMajor

        public static final long pos2IndexColumnMajor(long[] size,
                                              long[] pos)

      • index2PosRowMajor

        public static final long[] index2PosRowMajor(long[] size,
                                             long index)

      • index2PosColumnMajor

        public static final long[] index2PosColumnMajor(long[] size,
                                                long index)

      • totalCorrect

        public static final long totalCorrect(Matrix confusionMatrix)

      • accuracy

        public static final double accuracy(Matrix confusionMatrix)

      • precisionMacro

        public static double precisionMacro(Matrix confusionMatrix)

      • recallMacro

        public static double recallMacro(Matrix confusionMatrix)

      • f1MeasureMacro

        public static double f1MeasureMacro(Matrix confusionMatrix)

      • precision

        public static double precision(Matrix confusionMatrix,
                               long catIndex)

      • recall

        public static double recall(Matrix confusionMatrix,
                            long catIndex)

      • f1Measure

        public static double f1Measure(Matrix confusionMatrix,
                               long catIndex)

      • precisionMicro

        public static double precisionMicro(Matrix confusionMatrix)

      • recallMicro

        public static double recallMicro(Matrix confusionMatrix)

      • f1MeasureMicro

        public static double f1MeasureMicro(Matrix confusionMatrix)

      • longToIntClip

        public static final int longToIntClip(long value)

      • longToInt

        public static final int longToInt(long value)

      • isDigit

        public static boolean isDigit(char c)

      • isSign

        public static boolean isSign(char c)

      • hexToInt

        public static int hexToInt(java.lang.String hex)

      • intToHex

        public static java.lang.String intToHex(int i)

      • isDiscrete

        public static boolean isDiscrete(double number)

      • guid

        public static java.lang.String guid()
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