ALTADataSet.Calculate: Difference between revisions
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{{Template: | {{Template:API}}{{Template:APIBreadcrumb|.[[ALTADataSet_Class|ALTADataSet]]}} | ||
<noinclude>Returns a message box that shows the estimated parameters of the model (i.e., distribution and life-stress relationship), based on the settings specified in the <code>AnalysisSettings</code> property of the ALTADataSet object. In addition, it creates a retrievable [[CModel Class|cModel]] object that represents the fitted model from the accelerated life testing data analysis. | |||
If no data set has been defined, the API prompts the user to enter the parameters for the specified distribution. </noinclude> | |||
== Syntax == | == Syntax == | ||
.Calculate() | |||
== | == Example == | ||
{{APIComment|'Declare a new ALTADataSet object | '''VBA''' | ||
{{APIComment|'Declare a new ALTADataSet object.}} | |||
{{APIPrefix|Dim}} ADS {{APIPrefix|As New}} ALTADataSet | |||
{{APIComment|'Define a | {{APIComment|'Define a stress type with use stress level = 25.}} | ||
{{APIPrefix|Call}} ADS.AddStressDefinition({{APIString|"Stress1"}},,300) | |||
{{APIComment|'Add failure times for Stress1 = 190.}} | |||
{{APIPrefix|Dim}} Stress(0) {{APIPrefix|As}} Variant | |||
Stress(0) = 190 | |||
{{APIPrefix|Call}} ADS.AddFailure(100, 1, Stress) | |||
{{APIPrefix|Call}} ADS.AddFailure(120, 1, Stress) | |||
Stress(0) = 235 | |||
{{APIPrefix|Call}} ADS.AddFailure(130, 1, Stress) | |||
{{APIPrefix|Call}} ADS.AddFailure(140, 1, Stress) | |||
{{APIComment|' | {{APIComment|'Fit the data to a model, using all default analysis settings.}} | ||
{{APIPrefix|Call}} ADS.Calculate() | |||
{{APIComment|'Retrieve the fitted model.}} | |||
{{APIPrefix|Dim}} model {{APIPrefix|As}} cModel | |||
{{APIPrefix|Set}} model = ADS.FittedModel | |||
{{APIComment|'Using the model, calculate the reliability at 100 hrs and display the result.}} | |||
{{APIPrefix|Dim}} r {{APIPrefix|As}} Double | |||
r = model.reliability(100) | |||
MsgBox({{APIString|"Reliability at 100 hrs: "}} & r) | |||
'''VB.NET''' | |||
{{APIComment|'Declare a new ALTADataSet object.}} | |||
{{APIPrefix|Dim}} ADS {{APIPrefix|As New}} ALTADataSet | |||
{{APIComment|'Define a stress type with use stress level = 25.}} | |||
ADS.AddStressDefinition({{APIString|"Stress1"}},,300) | |||
{{APIComment|'Add failure times for Stress1 = 190.}} | |||
ADS.AddFailure(100, 1, 190) | |||
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.}} | {{APIComment|'Fit the data to a model, using all default analysis settings.}} | ||
ADS.Calculate() | |||
{{APIComment|'Retrieve the fitted model | {{APIComment|'Retrieve the fitted model.}} | ||
{{APIPrefix|Dim}} model {{APIPrefix|As}} cModel | |||
model = ADS.FittedModel | |||
{{APIComment|'Using the model, calculate the reliability at 100 hrs and display the result.}} | |||
{{APIPrefix|Dim}} r {{APIPrefix|As}} Double | |||
r = model.reliability(100) | |||
MsgBox({{APIString|"Reliability at 100 hrs: "}} & r) |
Revision as of 17:24, 19 April 2016
Member of: SynthesisAPI.ALTADataSet
Returns a message box that shows the estimated parameters of the model (i.e., distribution and life-stress relationship), based on the settings specified in the AnalysisSettings
property of the ALTADataSet object. In addition, it creates a retrievable cModel object that represents the fitted model from the accelerated life testing data analysis.
If no data set has been defined, the API prompts the user to enter the parameters for the specified distribution.
Syntax
.Calculate()
Example
VBA 'Declare a new ALTADataSet object. Dim ADS As New ALTADataSet 'Define a stress type with use stress level = 25. Call ADS.AddStressDefinition("Stress1",,300) 'Add failure times for Stress1 = 190. Dim Stress(0) As Variant Stress(0) = 190 Call ADS.AddFailure(100, 1, Stress) Call ADS.AddFailure(120, 1, Stress) Stress(0) = 235 Call ADS.AddFailure(130, 1, Stress) Call ADS.AddFailure(140, 1, Stress) 'Fit the data to a model, using all default analysis settings. Call ADS.Calculate() 'Retrieve the fitted model. Dim model As cModel Set model = ADS.FittedModel 'Using the model, calculate the reliability at 100 hrs and display the result. Dim r As Double r = model.reliability(100) MsgBox("Reliability at 100 hrs: " & r)
VB.NET 'Declare a new ALTADataSet object. Dim ADS As New ALTADataSet 'Define a stress type with use stress level = 25. ADS.AddStressDefinition("Stress1",,300) 'Add failure times for Stress1 = 190. 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 fitted model. Dim model As cModel model = ADS.FittedModel 'Using the model, calculate the reliability at 100 hrs and display the result. Dim r As Double r = model.reliability(100) MsgBox("Reliability at 100 hrs: " & r)