calhoun.util
Class ColtUtil

java.lang.Object
  calhoun.util.ColtUtil

public class ColtUtil
extends java.lang.Object

Field Summary

static cern.colt.function.DoubleFunction	exp
static cern.colt.function.DoubleFunction	ln

Constructor Summary

ColtUtil()

Method Summary

static double	dotProduct(double[] a, double[] b)
static void	exponentiate_real_matrix(cern.colt.matrix.DoubleMatrix2D X, cern.colt.matrix.DoubleMatrix2D Y, int degree)
static void	exponentiate_symmetric_matrix(cern.colt.matrix.DoubleMatrix2D X, cern.colt.matrix.DoubleMatrix2D Y)
static java.lang.String	format(double[] str)
static java.lang.String	format(cern.colt.matrix.DoubleMatrix2D mi)
static int	maxInColumn(double[] m, int numRows, int col)
static int	maxInColumn(cern.colt.matrix.DoubleMatrix2D m, int col) Returns the row with the largest value in the given column
static double	maxValueInColumn(double[] m, int numRows, int col)
static double	norm(double[] ar)
static void	print(double[] str, int numRows, int numCols)
static void	print(int[] str, int numRows, int numCols)
static void	printToFile(double[] str, int numRows, int numCols)
static void	scalarmultiply(cern.colt.matrix.DoubleMatrix2D S, double t)

Methods inherited from class java.lang.Object

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

Field Detail

exp

public static final cern.colt.function.DoubleFunction exp

ln

public static final cern.colt.function.DoubleFunction ln

Constructor Detail

ColtUtil

public ColtUtil()

Method Detail

exponentiate_real_matrix

public static void exponentiate_real_matrix(cern.colt.matrix.DoubleMatrix2D X,
                                            cern.colt.matrix.DoubleMatrix2D Y,
                                            int degree)

exponentiate_symmetric_matrix

public static void exponentiate_symmetric_matrix(cern.colt.matrix.DoubleMatrix2D X,
                                                 cern.colt.matrix.DoubleMatrix2D Y)

dotProduct

public static double dotProduct(double[] a,
                                double[] b)

format

public static java.lang.String format(double[] str)

printToFile

public static void printToFile(double[] str,
                               int numRows,
                               int numCols)

print

public static void print(double[] str,
                         int numRows,
                         int numCols)

print

public static void print(int[] str,
                         int numRows,
                         int numCols)

norm

public static double norm(double[] ar)

format

public static java.lang.String format(cern.colt.matrix.DoubleMatrix2D mi)

maxInColumn

public static int maxInColumn(cern.colt.matrix.DoubleMatrix2D m,
                              int col)

Returns the row with the largest value in the given column

maxInColumn

public static int maxInColumn(double[] m,
                              int numRows,
                              int col)

maxValueInColumn

public static double maxValueInColumn(double[] m,
                                      int numRows,
                                      int col)

scalarmultiply

public static void scalarmultiply(cern.colt.matrix.DoubleMatrix2D S,
                                  double t)