WeibullDataSet Class: Difference between revisions

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{{Template:APIClass|WeibullDataSet Class| }}  
{{Template:API}}{{Template:APIBreadcrumb}}
{{Template:WeibullDataSet Class.Cmt}}
{{Template:PlotsNote.Cmt}}


A usage example for this class is available [[WeibullDataSet Class Example|here]].


== Constructors ==
<onlyinclude>Represents a data set for life data analysis. </onlyinclude>
*[[WeibullDataSet_Constructors|WeibullDataSet]]        {{APIComment|{{Template:WeibullDataSet Constructors1.Cmt}}}}
*[[WeibullDataSet_Constructors|WeibullDataSet( String )]]  {{APIComment|{{Template:WeibullDataSet Constructors2.Cmt}}}}


== Methods ==
==Constructor==
Use these methods to enter data points into a data sheet and analyze them. The settings for the analysis are specified with this class's properties.
{| {{APITable}}
|-
| style="width: 200px;"|WeibullDataSet||Creates an instance of the WeibullDataSet class.
|-
|[[WeibullDataSet_Constructors|WeibullDataSet()]]||{{:WeibullDataSet_Constructors}}
|}


'''Add/Remove Data'''
*[[WeibullDataSet.AddFailure|AddFailure( Double, Integer )]]      {{APIComment|{{Template:WeibullDataSet.AddFailure.Cmt}}}}
*[[WeibullDataSet.AddSuspension|AddSuspension( Double, Integer )]] {{APIComment|{{Template:WeibullDataSet.AddSuspension.Cmt}}}}
*[[WeibullDataSet.AddFailureInterval|AddFailureInterval( Double, Double, Integer )]]        {{APIComment|{{Template:WeibullDataSet.AddFailureInterval.Cmt}}}}
*[[WeibullDataSet.AddSuspensionInterval|AddSuspensionInterval( Double, Double, Integer )]]  {{APIComment|{{Template:WeibullDataSet.AddSuspensionInterval.Cmt}}}}
*[[WeibullDataSet.AddFreeForm|AddFreeForm( Double, Double )]]                          {{APIComment|{{Template:WeibullDataSet.AddFreeForm.Cmt}}}}
*[[WeibullDataSet.ClearDataSet|ClearDataSet]]                    {{APIComment|{{Template:WeibullDataSet.ClearDataSet.Cmt}}}}


'''Analyze Data'''
== Methods==
*[[WeibullDataSet.Calculate|Calculate]]               {{APIComment|{{Template:WeibullDataSet.Calculate.Cmt}}}}
{| {{APITable}}
*[[WeibullDataSet.CalculateBestFit|CalculateBestFit]] {{APIComment|{{Template:WeibullDataSet.CalculateBestFit.Cmt}}}}
|-
|style="width: 200px;"|[[WeibullDataSet.AddFailure|AddFailure]]||{{:WeibullDataSet.AddFailure}}
|-
|[[WeibullDataSet.AddFailureInterval|AddFailureInterval]]||{{:WeibullDataSet.AddFailureInterval}}
|-
|[[WeibullDataSet.AddFreeForm|AddFreeForm]]||{{:WeibullDataSet.AddFreeForm}}
|-
|[[WeibullDataSet.AddSuspension|AddSuspension]]||{{:WeibullDataSet.AddSuspension}}
|-
|[[WeibullDataSet.AddSuspensionInterval|AddSuspensionInterval]]||{{:WeibullDataSet.AddSuspensionInterval}}
|-
|[[WeibullDataSet.Calculate|Calculate]]||{{:WeibullDataSet.Calculate}}
|-
|[[WeibullDataSet.CalculateBestFit|CalculateBestFit]]||{{:WeibullDataSet.CalculateBestFit}}
|-
|[[WeibullDataSet.ClearDataSet|ClearDataSet]]||{{:WeibullDataSet.ClearDataSet}}
|-
|}


== Properties  ==
Use these properties to specify analysis settings and view analysis results, as well as view or edit properties of the data set.


'''Analysis Settings'''
==Properties==
*AnalysisSettings (as ''[[WeibullAnalysisOptions_Class|WeibullAnalysisOptions]]'') {{APIComment|{{Template:WeibullDataSet.AnalysisSettings.Cmt}}}}
{| {{APITable}}
*BestFitSettings (as ''[[WeibullBestFitOptions_Class|WeibullBestFitOptions]]'') {{APIComment|{{Template:WeibullDataSet.BestFitSettings.Cmt}}}}
|-
*GeneralSettings (as ''[[WeibullGeneralOptions_Class|WeibullGeneralOptions]]'') {{APIComment|{{Template:WeibullDataSet.GeneralSettings.Cmt}}}}
|style="width: 200px;"|AnalysisResults||Gets the '''[[WeibullAnalysisResults Class|WeibullAnalysisResults]]''' object that represents the correlation coefficient, likelihood ratio and PNZ values from the life data analysis.
|-
|Calculated||Indicates whether the data set has been analyzed. '''Boolean'''. Read only.
|-
|DataSetName||Gets or sets the name of the data set. '''String'''. If no name has been specified, the default name is "Set 1."
|-
|FailureCount||Gets the total number of failures in the data set. '''Double'''
|-
|FittedModel||References the '''[[cModel Class|cModel]]''' object that represents the fitted model of the life data analysis. From the cModel object, you can obtain results such as the reliability, mean time, failure rate, etc.  
|-
|SuspensionCount||Gets the total number of suspensions in the data set. '''Double'''
|-
|UseCalculationProgress||Indicates whether to display the progress bar while analyzing the data set. '''Boolean'''. Default value = True.
|-
|UseEvents||Indicates whether to enable user-defined event procedures for the <code>WeibullDataSet</code> object. '''Boolean'''. Default value = False.
|}


'''Analysis Results'''
==Fields==
*FittedModel (as ''[[cModel Class|cModel]]'') {{APIComment|{{Template:WeibullDataSet.FittedModel.Cmt}}}}
{| {{APITable}}
*AnalysisResults (as ''[[WeibullAnalysisResults Class|WeibullAnalysisResults]]'') {{APIComment|{{Template:WeibullDataSet.AnalysisResults.Cmt}}}}
|-
|style="width: 200px;"|AnalysisSettings||References the '''[[WeibullAnalysisOptions Class|WeibullAnalysisOptions]]''' object, which represents the analysis settings for the <code>Calculate</code> method. Read-Only.
|-
|BestFitSettings||References the '''[[WeibullBestFitOptions Class|WeibullBestFitOptions]]''' object, which represents the analysis settings for the <code>CalculateBestFit</code> method. Read-Only.
|-
|GeneralSettings||References the '''[[WeibullGeneralOptions Class|WeibullGeneralOptions]]''' object, which represents the calculation settings for both the <code>Calculate</code> and <code>CalculateBestFit</code> methods. Read-Only.
|}


'''Data Set Properties'''
*DatasetName (as ''string'') {{APIComment|{{Template:WeibullDataSet.DatasetName.Cmt}}}}
*FailureCount (as ''integer'') {{APIComment|{{Template:WeibullDataSet.FailureCount.Cmt}}}}
*SuspensionCount (as ''integer'') {{APIComment|{{Template:WeibullDataSet.SuspensionCount.Cmt}}}}


== Events ==
==Events==
 
{| {{APITable}}
The [[WeibullEvents Class|WeibullEvents]] class contains {{Template:WeibullEvents Class.Cmt}} <!--Shared with WeibullEvents_Class-->
|-
 
| style="width: 200px;"|[[WeibullDataSet.GetDistrParameters|GetDistrParameters]]||{{:WeibullDataSet.GetDistrParameters}}
The event handlers include:  
|-
 
|[[WeibullDataSet.HideCalculationProgress|HideCalculationProgress]]||{{:WeibullDataSet.HideCalculationProgress}}
*[[WeibullEvents.Message|Message( WeibullDataSet, String, String,  Boolean )]] {{APIComment|{{Template:WeibullEvents.Message.Cmt}}}}  
|-
*[[WeibullEvents.Question|Question( WeibullDataSet, String, MsgBoxStyle, MsgBoxResult )]] {{APIComment|{{Template:WeibullEvents.Question.Cmt}}}}  
|[[WeibullDataSet.Message|Message]]||{{:WeibullDataSet.Message}}
*[[WeibullEvents.GetDistrParameters|GetDistrParameters( WeibullDataSet, String, Boolean, List( Of ParamInputInfo ), Boolean )]]{{APIComment|{{Template:WeibullEvents.GetDistrParameters.Cmt}}}}  
|-
*[[WeibullEvents.UpdateCalculationProgress|UpdateCalculationProgress( WeibullDataSet, String, String, Double, Boolean, Long, Boolean ) ]]{{APIComment|{{Template:WeibullEvents.UpdateCalculationProgress.Cmt}}}}  
|[[WeibullDataSet.Question|Question]]||{{:WeibullDataSet.Question}}
*[[WeibullEvents.ShowCalculationProgress|ShowCalculationProgress( WeibullDataSet )]]{{APIComment|{{Template:WeibullEvents.ShowCalculationProgress.Cmt}}}}  
|-
*[[WeibullEvents.HideCalculationProgress|HideCalculationProgress( WeibullDataSet )]]{{APIComment|{{Template:WeibullEvents.HideCalculationProgress.Cmt}}}}
|[[WeibullDataSet.ShowCalculationProgress|ShowCalculationProgress]]||{{:WeibullDataSet.ShowCalculationProgress}}
 
|-
== Usage Example ==
|[[WeibullDataSet.UpdateCalculationProgress|UpdateCalculationProgress]]||{{:WeibullDataSet.UpdateCalculationProgress}}
This example demonstrates how to fit a times-to-failure data set to a life distribution and then use the fitted distribution to calculate the reliability at a specified time. Full application examples are available at [[Synthesis_API_Reference#Application_Examples]].
|}
 
{{APIComment|'Initialize a new WeibullDataSet object.}}
  Dim ADS As New WeibullDataSet("DataSet1")
 
{{APIComment|'Set the life distribution.}}
  WDS.AnalysisSettings.Distribution = WeibullSolverDistribution.Weibull
  WDS.AnalysisSettings.Parameters = WeibullSolverNumParameters.MS_2Parameter
 
{{APIComment|'Set the applicable analysis settings.}}
  WDS.AnalysisSettings.Analysis = WeibullSolverMethod.MLE
  WDS.AnalysisSettings.RankingMethod = WeibullSolverRankMethod.Median
  WDS.AnalysisSettings.UseRSRegression = False
  WDS.AnalysisSettings.ConfBounds = WeibullSolverCBMethod.FisherMatrix
  WDS.AnalysisSettings.SortBeforeCalculations = True
  WDS.AnalysisSettings.UngroupGroupedData = False
 
{{APIComment|'Set the Application Setup options.}}
  WDS.AnalysisSettings.UseSpecialSort = True
  WDS.GeneralSettings.AllowBiasingNormal = False
  WDS.GeneralSettings.DiscardNegLocation = False
  WDS.GeneralSettings.ResetExpLocation = False
  WDS.GeneralSettings.Use3PTrueMLE = False
  WDS.GeneralSettings.UseExtendedGGamma = False
  WDS.GeneralSettings.UsePlottedYPoints = False
  WDS.GeneralSettings.WarnNegLocation = False
 
{{APIComment|'Add failure times.}}
  WDS.AddFailure(16, 1)
  WDS.AddFailure(34, 1)
  WDS.AddFailure(53, 1)
  WDS.AddFailure(75, 1)
  WDS.AddFailure(93, 1)
  WDS.AddFailure(120, 1)
 
{{APIComment|'Add 4 suspensions.}}
  WDS.AddFailure(120, 4)
 
{{APIComment|'Fit failure times to the specified distribution.}}
  WDS.Calculate()
 
{{APIComment|'Get the reliability at 300 hours.}}
  Dim Rel As Double
  Rel = WDS.FittedModel.Reliability(300)

Latest revision as of 18:00, 16 January 2018

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Member of: SynthesisAPI


Represents a data set for life data analysis.

Constructor

Name Description
WeibullDataSet Creates an instance of the WeibullDataSet class.
WeibullDataSet() A parameterized constructor for the WeibullDataSet class. (.NET only)


Methods

Name Description
AddFailure Adds a failure time to the data set.
AddFailureInterval Adds interval censored failures to the data set.
AddFreeForm Adds a free-form data point to the data set.
AddSuspension Adds suspensions to the data set.
AddSuspensionInterval Adds interval censored suspensions to the data set.
Calculate Fits a life distribution to the current data set and creates a cModel object that represents the fitted model.
CalculateBestFit Determines which of the selected life distributions best fits the data set (similar to the Distribution Wizard feature in Weibull++) and creates a cModel object that represents the fitted model of the recommended distribution.
ClearDataSet Clears all data in the data set and removes the fitted model, if any.


Properties

Name Description
AnalysisResults Gets the WeibullAnalysisResults object that represents the correlation coefficient, likelihood ratio and PNZ values from the life data analysis.
Calculated Indicates whether the data set has been analyzed. Boolean. Read only.
DataSetName Gets or sets the name of the data set. String. If no name has been specified, the default name is "Set 1."
FailureCount Gets the total number of failures in the data set. Double
FittedModel References the cModel object that represents the fitted model of the life data analysis. From the cModel object, you can obtain results such as the reliability, mean time, failure rate, etc.
SuspensionCount Gets the total number of suspensions in the data set. Double
UseCalculationProgress Indicates whether to display the progress bar while analyzing the data set. Boolean. Default value = True.
UseEvents Indicates whether to enable user-defined event procedures for the WeibullDataSet object. Boolean. Default value = False.

Fields

Name Description
AnalysisSettings References the WeibullAnalysisOptions object, which represents the analysis settings for the Calculate method. Read-Only.
BestFitSettings References the WeibullBestFitOptions object, which represents the analysis settings for the CalculateBestFit method. Read-Only.
GeneralSettings References the WeibullGeneralOptions object, which represents the calculation settings for both the Calculate and CalculateBestFit methods. Read-Only.


Events

Name Description
GetDistrParameters Occurs when there is insufficient data to fit a model. Displays a prompt for entering the parameters of the distribution.
HideCalculationProgress Occurs when the calculation process is running. Hides the progress bar.
Message Occurs when an error is produced. Displays an error message.
Question Occurs when an answer to a question is required. Displays a message box with yes and no options.
ShowCalculationProgress Occurs when the calculation process is running. Displays a progress bar.
UpdateCalculationProgress Occurs when the calculation process is running. Displays messages regarding the progress of the calculations.
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