The ICLIFETEST Procedure

TIME Statement

  • TIME (variable, variable );

The TIME statement names the variables that represent the interval-censored observations. The variables should be numeric. For example, the following statement identifies Left as the lower bound and Right as the upper bound of an observed interval: 

  time (Left, Right);

Observations for which Left $<$ Right and both values are nonnegative are used. If the value for Left is missing or 0 and the value for Right is not missing, then the observation is treated as left-censored. If the Right value is missing and the value for Left is not missing, then the observation is treated as right-censored. Observations for which both variables are missing are not analyzed.