6.2 Cumulating durations

We can make summaries of individuals' experiences. First, let's count the number of different spells each individual has.

compute isemp = (empstat=1).
compute isunemp = (empstat=2).
compute isout = (empstat=3).

agg out = * /break = pid
 /nemp = sum(isemp)
 /nunemp = sum(isunemp)
 /nout = sum(isout).

freq nemp to nout.

We may want to know cumulative labour-market history:

get file "m:\empspells.sav".

missing values all (-9 thru -1).

vector dur(3).
if not missing(empstat) dur(empstat) = duration.

agg out = * /break = pid
 /dur1 to dur3 = sum(dur1 to dur3).

descr dur1 to dur3.