ALTAAnalysisResults Class: Difference between revisions

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{{Template:APIClass|ALTADataSet Class|ALTADataSet}}
{{Template:API}}{{Template:APIBreadcrumb}}
{{Template:ALTADataSet.AnalysisResults.Cmt}}


In ALTA, this is the '''LK Value''' that can appear in the '''Analysis Summary''' area on the control panel.


== Properties==
Represents the likelihood function value estimated from the accelerated life testing data analysis of the associated [[ALTADataSet Class|ALTADataSet]] object.


*LikelihoodValue (as ''double'') {{APIComment|The likelihood function value.}}
== Properties  ==
{| {{APITable}}
|-
| style="width: 180px;"|LikelihoodValue||Gets the likelihood function value (LK value). '''Double'''.
|}


== Usage Example ==


{{APIComment|Declare the ALTADataSet. See [[New ALTADataSet]] for additional details.}}
== Example ==
        Dim ALTADS as New ALTADataSet
The following example demonstrates how to return the LK value of a particular ALTADataSet object.  


{{APIComment|Declare an [[ALTAStressProfile Class|ALTAStressProfile]]. See [[ALTAStressProfile Class|ALTAStressProfile]] for additional details.}}
'''VBA'''
        Dim sp = New ALTAStressProfile("Profile1")
        sp.RepeatCycle = True
{{APIComment|'Declare a new ALTADataSet object.}}
        sp.AddSegment(1, 250)
  {{APIPrefix|Dim}} ADS {{APIPrefix|As New}} ALTADataSet
        sp.AddSegment(2, 300)
 
        sp.AddSegment(3, 400)
{{APIComment|'Define a stress type with use stress level = 300.}}
  {{APIPrefix|Call}} ADS.AddStressDefinition({{APIString|"Stress1"}},,300)
{{APIComment|'Add failure times for Stress1 = 190 and 235.}}
  {{APIPrefix|Call}} ADS.AddFailure_2(100, 1, 190)
  {{APIPrefix|Call}} ADS.AddFailure_2(120, 1, 190)
  {{APIPrefix|Call}} ADS.AddFailure_2(130, 1, 235)
  {{APIPrefix|Call}} ADS.AddFailure_2(140, 1, 235)
{{APIComment|'Fit the data to a model, using all default analysis settings.}}
  {{APIPrefix|Call}} ADS.Calculate()
 
{{APIComment|'Retrieve the LK value.}}
  {{APIPrefix|Dim}} LK {{APIPrefix|As}} Double
  LK = ADS.AnalysisResults.LikelihoodValue
  Msgbox(LK)


{{APIComment|Add values to the raw data.}}
'''VB.NET'''
        ALTADS.AddFailure(1, 1, sp)
        ALTADS.AddFailure(2, 1, sp)
{{APIComment|'Declare a new ALTADataSet object.}}
        ALTADS.AddFailure(3, 1, sp)
  {{APIPrefix|Dim}} ADS {{APIPrefix|As New}} ALTADataSet
 
 
{{APIComment|Calculate the Fitted Model using the raw data.}}
{{APIComment|'Define a stress type with use stress level = 300.}}
        ALTADS.Calculate()
  ADS.AddStressDefinition({{APIString|"Stress1"}},,300)
 
{{APIComment|Retrieve the results.  In this example, the likelihood result value is retrieved.}}
{{APIComment|'Add failure times for Stress1 = 190 and 235.}}
        Dim Likelihood As Double
  ADS.AddFailure(100, 1, 190)
        Likelihood = ALTADS.AnalysisResults.LikelihoodValue
  ADS.AddFailure(120, 1, 190)
  ADS.AddFailure(130, 1, 235)
  ADS.AddFailure(140, 1, 235)
{{APIComment|'Fit the data to a model, using all default analysis settings.}}
  ADS.Calculate()
 
{{APIComment|'Retrieve the LK value.}}
  {{APIPrefix|Dim}} LK {{APIPrefix|As}} Double
  LK = ADS.AnalysisResults.LikelihoodValue
  Msgbox(LK)

Latest revision as of 20:30, 24 June 2016

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Member of: SynthesisAPI


Represents the likelihood function value estimated from the accelerated life testing data analysis of the associated ALTADataSet object.

Properties

Name Description
LikelihoodValue Gets the likelihood function value (LK value). Double.


Example

The following example demonstrates how to return the LK value of a particular ALTADataSet object. 

VBA

 'Declare a new ALTADataSet object. 
  Dim ADS As New ALTADataSet
 
 'Define a stress type with use stress level = 300. 
  Call ADS.AddStressDefinition("Stress1",,300)

 'Add failure times for Stress1 = 190 and 235. 
  Call ADS.AddFailure_2(100, 1, 190)
  Call ADS.AddFailure_2(120, 1, 190)
  Call ADS.AddFailure_2(130, 1, 235)
  Call ADS.AddFailure_2(140, 1, 235)

 'Fit the data to a model, using all default analysis settings. 
  Call ADS.Calculate()
  
 'Retrieve the LK value. 
  Dim LK As Double
  LK = ADS.AnalysisResults.LikelihoodValue
  Msgbox(LK)

VB.NET

 'Declare a new ALTADataSet object. 
  Dim ADS As New ALTADataSet
 
 'Define a stress type with use stress level = 300. 
  ADS.AddStressDefinition("Stress1",,300)

 'Add failure times for Stress1 = 190 and 235. 
  ADS.AddFailure(100, 1, 190)
  ADS.AddFailure(120, 1, 190)
  ADS.AddFailure(130, 1, 235)
  ADS.AddFailure(140, 1, 235)

 'Fit the data to a model, using all default analysis settings. 
  ADS.Calculate()
  
 'Retrieve the LK value. 
  Dim LK As Double
  LK = ADS.AnalysisResults.LikelihoodValue
  Msgbox(LK)
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