About Probability Plot

The Probability Plot provides the same data as the CDF Plot, just represented in a log-log format. The log-log format reflects the standard technique for representing Weibull Distribution. Log-log format Data overlay gives a visual estimate of Goodness of Fit. Data overlay also gives clues to the presence of multiple failure modes. If a single or multiple inflection points exist in the data, then there is a possibility of multiple failure modes.

Note: If you selected to use a Confidence Level, confidence intervals are included in the analysis calculations and the upper and lower limits appear on the graph.

When you access a Probability Plot, GE Digital APM displays auto-censored datapoints that represent the life between the date of the failure and the end of the analysis.

While viewing a Probability Plot, you can:

• Hover or tap on any datapoint to view the coordinates and the details of a datapoint.
  • For an Estimated datapoint, you can view the type of distribution, the distribution parameters, and the value of R-Squared.
  • For an Observed datapoint, you can view the name and the value of the Variable.
• Select an observed datapoint to open the Point Information window. You can then select Go To Editor to view data.
• Censor a datapoint.
• Customize the appearance of the graph by using standard graph features.