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java.lang.Objectjhplot.stat.Statistics
public class Statistics
A static class for statistical calculations
Constructor Summary | |
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Statistics()
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Method Summary | |
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static double[][] |
correlation(double[][] v)
Correlation |
static double[][] |
correlation(double[][] v1,
double[][] v2)
Correlation coefficient, covariance(v1, v2) / Math.sqrt(variance(v1) * variance(v2) |
static double |
correlation(double[] v1,
double[] v2)
Correlation coefficient, covariance(v1, v2) / Math.sqrt(variance(v1) * variance(v2) |
static double[][] |
covariance(double[][] v)
Covariance |
static double[][] |
covariance(double[][] v1,
double[][] v2)
Covariance |
static double |
covariance(double[] v1,
double[] v2)
Covariance |
void |
doc()
Show online documentation. |
static double |
mean(double[] v)
Get mean value |
static double[] |
mean(double[][] v)
Get mean |
static double |
stddeviation(double[] v)
Standard deviation |
static double[] |
stddeviation(double[][] v)
Standard deviation |
static double |
variance(double[] v)
Variance |
static double[] |
variance(double[][] v)
Variance |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Statistics()
Method Detail |
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public static double mean(double[] v)
v
- vectorpublic static double[] mean(double[][] v)
v
- 2D array
public static double stddeviation(double[] v)
v
- vector
public static double variance(double[] v)
v
-
public static double[] stddeviation(double[][] v)
v
-
public static double[] variance(double[][] v)
v
- vector
public static double covariance(double[] v1, double[] v2)
v1
- first vectorv2
- second vector
public static double[][] covariance(double[][] v1, double[][] v2)
v1
- first 2D arrayv2
- second 2D array
public static double[][] covariance(double[][] v)
v
-
public static double correlation(double[] v1, double[] v2)
v1
- first vectorv2
- second vector
public static double[][] correlation(double[][] v1, double[][] v2)
v1
- first vectorv2
- second vector
public static double[][] correlation(double[][] v)
v
-
public void doc()
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