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Non-parametric recurrence data analysis provides a nonparametric graphical estimate of the mean cumulative number or cost of recurrence per unit versus age. In the reliability field, the Mean Cumulative Function (MCF) can be used to: [31]
- • Evaluate whether the population repair (or cost) rate increases or decreases with age (this is useful for product retirement and burn-in decisions).
- • Estimate the average number or cost of repairs per unit during warranty or some time period.
- • Compare two or more sets of data from different designs, production periods, maintenance policies, environments, operating conditions, etc.
- • Predict future numbers and costs of repairs, such as, the next month, quarter, or year.
- • Reveal unexpected information and insight.
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