|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--weka.core.SpecialFunctions
Class implementing some mathematical functions.
Constructor Summary | |
SpecialFunctions()
|
Method Summary | |
static double |
lnFactorial(double x)
Returns natural logarithm of factorial using gamma function. |
static double |
lnGamma(double x)
Returns natural logarithm of gamma function. |
static double |
log2Binomial(double a,
double b)
Returns base 2 logarithm of binomial coefficient using gamma function. |
static double |
log2Multinomial(double a,
double[] bs)
Returns base 2 logarithm of multinomial using gamma function. |
static void |
main(String[] ops)
Main method for testing this class. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public SpecialFunctions()
Method Detail |
public static double lnFactorial(double x)
x
- the value
public static double lnGamma(double x)
x
- the value
public static double log2Binomial(double a, double b) throws ArithmeticException
a
- upper part of binomial coefficientb
- lower part
ArithmeticException
public static double log2Multinomial(double a, double[] bs) throws ArithmeticException
a
- upper part of multinomial coefficientbs
- lower part
ArithmeticException
public static void main(String[] ops)
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |