# Parametric Growth Curve -
Retirement

main topic see also

Stat > Reliability/Survival > Repairable System Analysis
> Parametric Growth Curve > Retirement

Use to specify the retirement information.

## Dialog box items

Retirement time at
largest time for system Choose if the largest time for each system
is the retirement time for the system.

Failure
truncated systems: Choose if you have failure-truncated data only;
that is, the system is retired immediately upon the last failure.

Time
truncated systems: Choose if you have time-truncated data only;
that is, the largest time for each system is not a failure time.

Retirement time defined
by retirement columns Choose to define the retirement time when
you have both failure-truncated and time-truncated systems. See Using
time and retirement columns for more information.

Retirement
columns: Enter the retirement columns in the box. The first retirement
column is paired with the first data column, the second retirement column
is paired with the second data column, and so on. All retirement columns
must have exactly two distinct values unless you specify a retirement
value.

Retirement
value: Enter a value indicating which value in your retirement
column represents a retired system. If you do not enter a value, the lowest
value in the retirement column is the retirement value. Text values must
be contained in double quotes.

Note |
You cannot use a retirement column when you have interval
data. |