Relyence User Guide
Using the Weibull Analytics Calculator for Life Data Sets

Using the Weibull Analytics Calculator for Life Data Sets

For any Life Data Set, you can access the built-in Analytics Calculator for computing additional life data analysis results, such as Bearing Life (BX) for calculations like B10 Life, Failure Rate, Mean Life, Reliability and Warranty Time.

To access the Analytics Calculator, click the Analytics button in the Weibull toolbar.

The Analytics dialog appears.


Select the metric you wish to compute from the tabs on the left. Then enter the input parameters requested. Click Calculate to perform the calculation. The results will appear in the Results group box.

The available metrics, the requested input parameters, and the resulting values are as follows:

  • Bearing Life (BX)
    • Input Parameters: Bearing Life (BX) Percent, Confidence Type​, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
  • Failure Rate
    • Input Parameters: End Time, Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
  • Fisher Matrix 
    • Results: Parameter results based on the selected Distribution
  • Mean Life
    • Input Parameters: Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
  • Parameter Bounds
    • Input Parameters: Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested) for parameters relevant to the Data Set Distribution
  • Probability​
    • Input Parameters:
      • Calculate: Probability of Failure - End Time, Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
      • Calculate: Conditional Probability of Failure - Start Time, Additional Time, Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
  • Reliability
    • Input Parameters:
      • Calculate: Conditional Reliability - Start Time, Additional Time, Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
      • Calculate: Reliability - End Time, Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
  • Warranty Time
    • Input Parameters: Required Reliability, Confidence Type, Confidence Level (if requested), Confidence Method (if requested)
    • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
    When you have finished performing calculations, click Close to close the Analytics dialog.