gov.nasa.alsUtility
Class ComparativeStatistics
java.lang.Object
gov.nasa.alsUtility.ComparativeStatistics
- All Implemented Interfaces:
- java.io.Serializable
- public class ComparativeStatistics
- extends java.lang.Object
- implements java.io.Serializable
Implements comparative statistics measures on Sample objects.
- See Also:
Sample
,
Serialized Form
Method Summary |
static double |
Betacf(double A,
double B,
double X)
|
static double |
BetaI(double A,
double B,
double X)
|
static double |
ftest(Sample a,
Sample b)
implements and f-test between two Samples |
static double |
Gammln(double XX)
|
static double |
ttest(int count1,
int count2,
double mean1,
double mean2,
double stddev1,
double stddev2)
|
static double |
ttest(Sample a,
Sample b)
implements and t-test between two Samples. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CANNOT_DO_ANALYSIS
public static final int CANNOT_DO_ANALYSIS
- See Also:
- Constant Field Values
conflevel1
protected static double conflevel1
poolsigmas
protected static boolean poolsigmas
althyp1
protected static int althyp1
nullhyp1
protected static double nullhyp1
ComparativeStatistics
public ComparativeStatistics()
ftest
public static double ftest(Sample a,
Sample b)
- implements and f-test between two Samples
ttest
public static double ttest(Sample a,
Sample b)
- implements and t-test between two Samples. Returns CANNOT_DO_ANALYSIS if input samples cannot be
compared by Student's Ttest.
ttest
public static double ttest(int count1,
int count2,
double mean1,
double mean2,
double stddev1,
double stddev2)
BetaI
public static double BetaI(double A,
double B,
double X)
Betacf
public static double Betacf(double A,
double B,
double X)
Gammln
public static double Gammln(double XX)