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Quality and Reliability Methods - SAS

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Chapter 15 Recurrence Analysis 263<br />

Recurrence Data Analysis<br />

Recurrence Data Analysis<br />

Recurrent event data involves the cumulative frequency or cost of repairs as units age. In JMP, the<br />

Recurrence Analysis platform analyzes recurrent events data.<br />

The data for recurrence analysis have one row for each observed event <strong>and</strong> a closing row with the last<br />

observed age of a unit. Any number of units or systems can be included. In addition, these units or systems<br />

can include any number of recurrences.<br />

Launching the Platform<br />

To launch the platform, select Analyze > <strong>Reliability</strong> <strong>and</strong> Survival > Recurrence Analysis.<br />

Figure 15.1 Recurrence Analysis Launch Dialog<br />

Y, Age, Event Timestamp specifies either the unit's age at the time of an event or the timestamp of the<br />

event. If the Y column is an event timestamp, then you must specify the start <strong>and</strong> the end timestamp so that<br />

JMP can calculate age.<br />

Label, System ID identifies the unit for each event <strong>and</strong> censoring age.

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