st: Survival analysis - Inconstant event

["Miguel Angel Duran Munoz" <maduran@uma.es>]

Hi, Statalisters. I am not sure whether in a survival analysis I can
reflect the following sequence of events: (1) during some periods, an
agent does not fit into a certain category (specifically, a variable
characterizing that agent is lower than a threshold); (2) after a concrete
moment, the agent fits into the category (the variable is above the
threshold); 3) but then, after a few periods, the individual, again, does
not fit into the category (the variable is below the threshold).

Will anyone please help me with this?

Thanks in advance.

Miguel.

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