Reliability and Survival Methods • Fit Life by X • Additional Examples of the Fit Life by X Platform • Capacitor Example
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Capacitor Example
This example uses Capacitor ALT.jmp and can be found in the Reliability folder of the sample data. It contains simulated data that gives censored observations for three levels of temperature, for a reliability study. Observations are shown as censored values at temperature levels of 85, 105, and 125 degrees Celsius.
1.
Select Help > Sample Data Library and open Reliability/Capacitor ALT.jmp.
2.
Select Analyze > Reliability and Survival > Fit Life by X.
3.
Select Hours and click Y, Time to Event.
4.
Select Temperature and click X.
5.
Select Censor and click Censor.
6.
Leave the Censor Code as 1.
7.
Select Freq as Freq.
8.
Keep Arrhenius Celsius as the relationship, and keep the Nested Model Tests option selected.
9.
Select Weibull as the distribution.
10.
Keep Wald as the confidence interval method.
Figure 3.22 shows the completed launch window.
Figure 3.22 Fit Life by X Launch Window
11.
Click OK.
Figure 3.23 shows the top half of the Fit Life by X report window.
Figure 3.23 Fit Life by X Report Window for Capacitor ALT.jmp Data
The report window shows summary data, diagnostic plots, comparison data and results, including detailed statistics and prediction profilers. Separate result sections are shown for each selected distribution. Distribution, Quantile, Hazard, Density, and Acceleration Factor Profilers are included for each of the specified distributions.

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Help created on 7/12/2018