WaldTest Class 
Namespace: Accord.Statistics.Testing
The WaldTest type exposes the following members.
Name  Description  

WaldTest(Double) 
Constructs a Wald's test.
 
WaldTest(Double, Double, Double) 
Constructs a Wald's test.

Name  Description  

Analysis 
Gets the power analysis for the test, if available.
(Inherited from ZTest.)  
Confidence 
Gets the 95% confidence interval for the EstimatedValue.
(Inherited from ZTest.)  
CriticalValue 
Gets the critical value for the current significance level.
(Inherited from HypothesisTestTDistribution.)  
EstimatedValue 
Gets the estimated value, such as the mean estimated from a sample.
(Inherited from ZTest.)  
Hypothesis 
Gets the alternative hypothesis under test. If the test is
Significant, the null hypothesis can be rejected
in favor of this alternative hypothesis.
(Inherited from ZTest.)  
HypothesizedValue 
Gets the hypothesized value.
(Inherited from ZTest.)  
PValue 
Gets the Pvalue associated with this test.
(Inherited from HypothesisTestTDistribution.)  
Significant 
Gets whether the null hypothesis should be rejected.
(Inherited from HypothesisTestTDistribution.)  
Size 
Gets the significance level for the
test. Default value is 0.05 (5%).
(Inherited from HypothesisTestTDistribution.)  
StandardError 
Gets the standard error of the estimated value.
(Inherited from ZTest.)  
Statistic 
Gets the test statistic.
(Inherited from HypothesisTestTDistribution.)  
StatisticDistribution 
Gets the distribution associated
with the test statistic.
(Inherited from HypothesisTestTDistribution.)  
Tail 
Gets the test type.
(Inherited from HypothesisTestTDistribution.) 
Name  Description  

Compute(Double, OneSampleHypothesis) 
Computes the Z test.
(Inherited from ZTest.)  
Compute(Double, Double, Double, OneSampleHypothesis) 
Computes the Z test.
(Inherited from ZTest.)  
Equals  Determines whether the specified object is equal to the current object. (Inherited from Object.)  
Finalize  Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)  
GetConfidenceInterval 
Gets a confidence interval for the EstimatedValue
statistic within the given confidence level percentage.
(Inherited from ZTest.)  
GetHashCode  Serves as the default hash function. (Inherited from Object.)  
GetType  Gets the Type of the current instance. (Inherited from Object.)  
MemberwiseClone  Creates a shallow copy of the current Object. (Inherited from Object.)  
OnSizeChanged  Update event. (Inherited from ZTest.)  
PValueToStatistic(Double) 
Converts a given pvalue to a test statistic.
(Inherited from ZTest.)  
StatisticToPValue(Double) 
Converts a given test statistic to a pvalue.
(Inherited from ZTest.)  
ToString 
Converts the numeric PValue of this test to its equivalent string representation.
(Inherited from HypothesisTestTDistribution.)  
ToString(String, IFormatProvider) 
Converts the numeric PValue of this test to its equivalent string representation.
(Inherited from HypothesisTestTDistribution.) 
Name  Description  

HasMethod 
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.)  
IsEqual 
Compares two objects for equality, performing an elementwise
comparison if the elements are vectors or matrices.
(Defined by Matrix.)  
To(Type)  Overloaded.
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.
(Defined by ExtensionMethods.)  
ToT  Overloaded.
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.
(Defined by ExtensionMethods.) 
The Wald test is a parametric statistical test named after Abraham Wald with a great variety of uses. Whenever a relationship within or between data items can be expressed as a statistical model with parameters to be estimated from a sample, the Wald test can be used to test the true value of the parameter based on the sample estimate.
Under the Wald statistical test, the maximum likelihood estimate of the parameter(s) of interest θ is compared with the proposed value θ', with the assumption that the difference between the two will be approximately normal.
References: