public class F extends HypothesisTest
var.test
.Constructor and Description |
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F(double[] sample1,
double[] sample2)
Perform the F-test to test for equal variance of two normal populations.
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F(double[] sample1,
double[] sample2,
double ratio)
Perform the F-test to test for equal variance of two normal populations.
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Modifier and Type | Method and Description |
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double[] |
confidenceInterval(double confidence)
Compute the confidence interval.
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String |
getAlternativeHypothesis()
Get the description of the alternative hypothesis.
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String |
getNullHypothesis()
Get a description of the null hypothesis.
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double |
leftConfidenceInterval(double confidence)
Compute the one sided left confidence interval, [0, a]
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double |
leftOneSidedPvalue()
Get the left, one-sided p-value.
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double |
pValue()
Get the p-value for the test statistics.
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double |
rightConfidenceInterval(double confidence)
Compute the one sided right confidence interval, [a, ∞)
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double |
rightOneSidedPvalue()
Get the right, one-sided p-value.
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double |
statistics()
Get the test statistics.
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isNullRejected, nGroups, nObs, oneSidedPvalue
public F(double[] sample1, double[] sample2)
sample1
- sample 1sample2
- sample 2public F(double[] sample1, double[] sample2, double ratio)
sample1
- sample 1sample2
- sample 2ratio
- the hypothesized ratio of the population variances of samples 1 and 2public String getNullHypothesis()
HypothesisTest
getNullHypothesis
in class HypothesisTest
public String getAlternativeHypothesis()
HypothesisTest
getAlternativeHypothesis
in class HypothesisTest
public double statistics()
HypothesisTest
statistics
in class HypothesisTest
public double pValue()
HypothesisTest
pValue
in class HypothesisTest
public double rightOneSidedPvalue()
public double leftOneSidedPvalue()
public double[] confidenceInterval(double confidence)
confidence
- the confidence level, e.g., for a 2-sided 95% confidence interval, we use 0.975 because 1 - 0.95 = 2 * (1 - 0.025)public double rightConfidenceInterval(double confidence)
confidence
- the confidence level, e.g., 0.95 for 95% confidence intervalpublic double leftConfidenceInterval(double confidence)
confidence
- the confidence level, e.g., 0.95 for 95% confidence intervalCopyright © 2010-2020 NM FinTech Ltd.. All Rights Reserved.