ALTADataSet.AddFailureInterval

Adds a failure interval and associated stress level to the data set.

Syntax

• AddFailureInterval( StartValue As Double , EndValue As Double , NumberInGroup As Integer , Stress() As Object ) Adds interval censored failures to the data set, using the specified start/end times, the number of failures during the interval and an array of stress values/profiles for all the stresses.
• AddFailureInterval( StartValue As Double , EndValue As Double , NumberInGroup As Integer , Stress1 As Object ) Adds interval censored failures to the data set, using the specified start/end times, the number of failures during the interval and a single stress value/profile.
• AddFailureInterval( StartValue As Double , EndValue As Double , NumberInGroup As Integer , Stress1 As Object , Stress2 As Object ) Adds interval censored failures to the data set, using the specified start/end times, the number of failures during the interval and two stress values/profiles.

Parameters

StartValue: The starting value of this failure interval.

EndValue: The ending value of this failure interval.

NumberInGroup: The number of units that failed during this interval.

Stress(): An array containing numeric stress values or references to added ALTAStressProfiles.

Stress1: A numeric stress value or reference to an added ALTAStressProfile.

Stress2: A numeric stress value or reference to an added ALTAStressProfile.

Usage Example

Declare the ALTADataSet. See New ALTADataSet for additional details.

       Dim ALTADS as New ALTADataSet

Declare an ALTAStressProfile. See ALTAStressProfile for additional details.

       Dim sp = New ALTAStressProfile("Profile1")
       sp.RepeatCycle = True
       sp.AddSegment(1, 250)
       sp.AddSegment(2, 300)
       sp.AddSegment(3, 400)

Add values to the raw data.

       ALTADS.AddFailureInterval(1, 5, 1, sp)
       ALTADS.AddFailureInterval(6, 10, 1, sp)
       ALTADS.AddFailureInterval(11, 15, 1, sp)