Specify the failure modes for Parametric Distribution Analysis (Arbitrary Censoring)

Stat > Reliability/Survival > Distribution Analysis (Arbitrary Censoring) > Parametric Distribution Analysis > FMode

If you have multiple causes of failure, enter a column or columns to evaluate the reliability of the individual failure modes. For more information on failure modes, go to What is a failure mode?.

Use failure mode columns

Enter the columns that contain the failure modes. To represent right-censored observations in the failure mode column, use an asterisk (*) for numeric columns or a space for text columns.

Failure Mode Options

Use all failure modes: Include all failure modes in the analysis.
Use failure modes: Enter the failure modes to include in the analysis. Enclose text values in double quotation marks.
Eliminate failure modes: Enter the failure modes to exclude from the analysis. Enclose text values in double quotation marks.

Create right censored observations using

Use to determine how Minitab will create right-censored observations for other failure modes when data are interval censored.

Midpoint of intervals: Select if a failure for any one failure mode causes the experiment to end.
Right endpoint of intervals: Select if the experiment continues until the right endpoint when a failure in the interval occurs.

Change Distribution for Levels

Use only if the distribution for one or more failure modes is different from the distribution that you selected on the main dialog box. In Level, enter the failure mode. Enclose text values in double quotation marks. Then select a distribution to model the failure mode.

Note

If you do not know which distribution adequately models the failure modes in your data, use Distribution ID Plot (Arbitrary Censoring) before you use this analysis.