Related Topics:
	ALTA Standard Folio

Weibull++ Standard Folio

The objective of life data analysis is to fit a statistical distribution to failure time data in order to understand the reliability performance of a product over time or to make projections about future behavior. From the analysis, you can estimate several life characteristics, such as probability of failure, reliability, mean life or failure rate.

The Weibull++ standard folio for life data analysis is the most basic folio in the application. The following topics describe how to use the folio for performing an analysis:

• Setting up a Weibull++ standard folio.

• Entering different types of life data.

• Analyzing life data, including:

• • Using subset IDs.

  • Using the control panel and choosing the analysis settings.

  • Generating life data analysis plots.

  • Performing reliability calculations via the Quick Calculation Pad (QCP).

• Example of a simple life data analysis.

• Additional analysis tools, including:

• • Choosing a life distribution via the Distribution Wizard.

  • Extracting subsets of data via the batch auto run process.

  • Evaluating the fit of a distribution with the Goodness of Fit Results tool.

  • Grouping together data points via the Auto Group Data tool.

• Special analysis methods, including:

• Mixed Weibull analysis.

• Bayesian-Weibull analysis.

• Competing Failure Modes (CFM) analysis.

• What-if analysis, including:

• Altering the parameters of a model.

• Fractional failure analysis.

• Using the Specify Points feature to adjust a rank regression analysis.

• Performing calculations with no data.

• Using the Fill Median Ranks feature to obtain an unreliability estimate of a failure.

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