hex.genmodel.utils

Class MathUtils

java.lang.Object

hex.genmodel.utils.MathUtils

public class MathUtils
extends java.lang.Object

Copied (partially) from water.util.MathUtils

Constructor Summary

Constructors

Constructor and Description
MathUtils()

Method Summary

Modifier and Type	Method and Description
static int	combinatorial(int top, int bottom)
static boolean	equalsWithinRecSumErr(double actual, double expected, int n, double absum)
static int	log2(int n) Fast calculation of log base 2 for integers.
static int	log2(long n)

Methods inherited from class java.lang.Object

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

Constructor Detail

MathUtils

public MathUtils()

Method Detail

equalsWithinRecSumErr

public static boolean equalsWithinRecSumErr(double actual,
                                            double expected,
                                            int n,
                                            double absum)

log2

public static int log2(int n)

Fast calculation of log base 2 for integers.

Returns:

log base 2 of n

log2

public static int log2(long n)

combinatorial

public static int combinatorial(int top,
                                int bottom)