version 9
capture log close
set more off
log using ehe2.log, replace

use rrdat1, clear

gen des = tfin ~= ti             /*destination state*/
gen tf  = tfin - tstart + 1      /*ending time*/

gen newid = _n
stset tf, failure(des) id(newid)    /*define single episode data*/

gen coho2 = tb >= 468 & tb <= 504   /*cohort 2*/
gen coho3 = tb >= 588 & tb <= 624   /*cohort 3*/
gen lfx   = tstart - te             /*labor force experience*/
gen pnoj  = noj - 1                 /*previous number of jobs*/

stpiece edu coho2 coho3 lfx pnoj pres, /// 
tp(0(12)96) nohr   /*fit piecewise constant exponential model*/

log close