Reliability and Survival Methods • Degradation • Launch the Degradation Platform
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Launch the Degradation Platform
Launch the Degradation platform by selecting Analyze > Reliability and Survival > Degradation. Degradation Launch Window shows the Degradation launch window using the GaAs Laser.jmp data table (located in the Reliability folder).
Degradation Launch Window
The launch window is split into three tabs, representing three different types of analyses:
Repeated Measures Degradation
Performs linear or nonlinear degradation analysis. This option does not allow censoring. This option allows only one Y, Response variable.
Destructive Degradation
Choose this type of analysis if units are destroyed during the measurement process. This option allows censoring. For more information, refer to Destructive Degradation.
Note: The Destructive Degradation platform provides a flexible collection of predefined models for destructive testing. See the Destructive Degradation section.
Stability Test
Performs a stability analysis for setting pharmaceutical product expiration dates. This option allows only one Y, Response variable. For more information about stability analyses, refer to Stability Analysis.
Explanation of Degradation Launch Window 
Role
Explanation
Y, Response
Assign the column with degradation measurements.
Time
Assign the column containing the time values.
X
(Repeated Measures Degradation and Destructive Degradation tabs only) Assign an explanatory variable.
Label, System ID
(Repeated Measures Degradation and Stability Test tabs only) Assign the column that designates the unit IDs.
Freq
Assign a column giving a frequency for each row.
Censor
(Destructive Degradation tab only) Assign a column that designates if a unit is censored.
By
Assign a variable to produce an analysis for each level of the variable.
Censor Code
(Destructive Degradation tab only) Specify the string or value in the Censor column that designates censoring. By default, the value is 1.
Upper Spec Limit
Assign an upper spec limit.
Lower Spec Limit
Assign a lower spec limit.
Censoring Time
Assign a censoring value.