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Showing content from http://accord-framework.net/docs/html/T_Accord_Statistics_Testing_KappaTest.htm below:

Kappa Test for agreement in contingency tables.

Accord.Statistics (in Accord.Statistics.dll) Version: 3.8.0

[SerializableAttribute]
public class KappaTest : ZTest

<SerializableAttribute>
Public Class KappaTest
	Inherits ZTest

The KappaTest type exposes the following members.

Creates a new Kappa test.

Creates a new Kappa test.

Creates a new Kappa test.

Creates a new Kappa test.

Creates a new Kappa test.

Computes the asymptotic variance for Fleiss's Kappa variance using the formulae by (Fleiss et al, 1969) when the underlying Kappa is assumed different from zero.

Computes the asymptotic variance for Fleiss's Kappa variance using the formulae by (Fleiss et al, 1969). If nullHypothesis is set to true, the method will return the variance under the null hypothesis.

Computes the asymptotic variance for Fleiss's Kappa variance using the formulae by (Fleiss et al, 1969). If nullHypothesis is set to true, the method will return the variance under the null hypothesis.

Computes the Z test.

Computes the Z test.

Compute Cohen's Kappa variance using the large sample approximation given by Congalton, which is common in the remote sensing literature.

Compute Cohen's Kappa variance using the large sample approximation given by Congalton, which is common in the remote sensing literature.

Determines whether the specified object is equal to the current object.

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

Gets a confidence interval for the

statistic within the given confidence level percentage.

Serves as the default hash function.

Gets the Type of the current instance.

Creates a shallow copy of the current Object.

Update event.

Converts a given p-value to a test statistic.

Converts a given test statistic to a p-value.

Converts the numeric P-Value of this test to its equivalent string representation.

Converts the numeric P-Value of this test to its equivalent string representation.

Checks whether an object implements a method with the given name.

Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices.

Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.

Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.

The Kappa test tries to assert whether the Kappa measure of a a contingency table, is significantly different from another hypothesized value.

The computations used by the test are the same found in the 1969 paper by J. L. Fleiss, J. Cohen, B. S. Everitt, in which they presented the finally corrected version of the Kappa's variance formulae. This is contrast to the computations traditionally found in the remote sensing literature. For those variance computations, see the DeltaMethodKappaVariance(GeneralConfusionMatrix) method.

This is a z-test kind of test.

References:

• J. L. Fleiss. Statistical methods for rates and proportions. Wiley-Interscience; 3rd edition (September 5, 2003)
• J. L. Fleiss, J. Cohen, B. S. Everitt. Large sample standard errors of kappa and weighted kappa. Psychological Bulletin, Volume: 72, Issue: 5. Washington, DC: American Psychological Association, Pages: 323-327, 1969.

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