Class Utils

Method Details

• isContains

  public static final boolean isContains(String[] set, String query)

  Test if a string occurs within a set

  Parameters:

  set - the set of strings

  query - the query string

  Returns:

  true if the query string is in the set (as determined by object equality)

• getCopy

  public static final double[] getCopy(double[] array)

  Clones an array of doubles

  Returns:

  null if input is null, otherwise return complete copy.

• getSum

  public static final double getSum(double[] array)

  Calculate the total of an array

  Parameters:

  array - The array to sum up

  Returns:

  the sum of all the elements

• getMax

  public static final double getMax(double[] array)

  Calculate the max of an array

  Parameters:

  array - The array to check

  Returns:

  the max of all the elements

• getMax

  public static final double getMax(double[] array, int start, int end)

  Calculate the max of an array

  Parameters:

  array - The array to check

  start - the first index to check

  end - the index after the last index to check

  Returns:

  the max of all the elements

• getMin

  public static final double getMin(double[] array)

  Calculate the min of an array

  Parameters:

  array - The array to check

  Returns:

  the min of all the elements

• getMean

  public static final double getMean(double[] array)

  Calculate the mean value of an array

  Parameters:

  array - the values

  Returns:

  the average

• getCopy

  public static final double[] getCopy(double[] array, int start, int end)

  Clones an array of doubles from index start (inclusive) to index end (exclusive)

  Returns:

  null if input is null

• getCopy

  public static final double[] getCopy(double[] array, int start)

  Clones an array of doubles from index start (inclusive) to end

  Returns:

  null if input is null

• getCopy

  public static final byte[] getCopy(byte[] array)

  Clones an array of bytes

  Parameters:

  array - the bytes to copy

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final String[] getCopy(String[] array)

  Clones an array of Strings

  Parameters:

  array - the strings to copy

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final double[][] getCopy(double[][] array)

  Clones an array of doubles

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final int[][] getCopy(int[][] matrix)

  Clones a matrix of ints

  Parameters:

  matrix - the matrix to clone

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final double[][][] getCopy(double[][][] array)

  Clones an array of doubles

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final byte[][] getCopy(byte[][] array)

  Clones an array of bytes

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final boolean[][] getCopy(boolean[][] array)

  Clones an array of booleans

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final int[] getCopy(int[] array)

  Clones an array of ints

  Returns:

  null if input is null, otherwise return complete copy.

• getCopy

  public static final int[] getCopy(int[] array, int startingIndex)

  Clones an array of ints

  Parameters:

  startingIndex - , starts copying from this index

  Returns:

  null if input is null, otherwise return complete copy.

• copy

  public static final void copy(double[][] source, double[][] dest)

  Copies all of source into dest - assumes dest to be large enough

• toString

  public static final String toString(double[] array, int number)

  A simple toString method for an array of doubles. No fancy formating. Puts spaces between each value

  Parameters:

  number - number of elements to process starting from first element

• toString

  public static final String toString(Object[] array, int number)

  A simple toString method for an array of objects. No fancy formating. Puts spaces between each value

  Parameters:

  number - number of elements to process starting from first element

• toString

  public static final String toString(Object[] array, String divider)

  A simple toString method for an array of objects. No fancy formating. Puts user defined string between each value

  Parameters:

  number - number of elements to process starting from first element

• toString

  public static final String toString(Object[] array, String divider, int number)

  A simple toString method for an array of objects. No fancy formating. Puts user defined string between each value

  Parameters:

  number - number of elements to process starting from first element

• toString

  public static final String toString(Object[] array)

  A simple toString method for an array of doubles. No fancy formating. Puts spaces between each value

• toString

  public static final String toString(double[] array)

  A simple toString method for an array of doubles. No fancy formating. Puts spaces between each value

• toString

  public static final String toString(int[] array)

  A simple toString method for an array of ints. No fancy formating. Puts spaces between each value

• toString

  public static final String toString(int[] array, int number)

• toString

  public static final String toString(double[][] array)

  A simple toString method for an array of doubles. No fancy formating. Puts spaces between each value

• toString

  public static final String toString(int[][] array)

  A simple toString method for an array of ints. No fancy formating. Puts spaces between each value

• argmax

  public static final int argmax(int[] array)

  Deprecated.

  See Also:

  • getArgmax()

• getArgmax

  public static final int getArgmax(int[] array)

  Find the maximum "argument"

  Parameters:

  array - The array to examine

  Returns:

  the element of the array with the maximum value

• argmax

  public static final int argmax(double[] array)

  Deprecated.

  See Also:

  • getArgmax()

• getArgmax

  public static final int getArgmax(double[] array)

  Find the maximum "argument" (of a double array)

  Parameters:

  array - The array to examine

  Returns:

  the element of the array with the maximum value

• combineMultivariateFunction

  public static final MultivariateFunction combineMultivariateFunction(MultivariateFunction base, Parameterized[] additionalParameters)

  Creates an interface between a parameterised object to allow it to act as a multivariate minimum.