/*  Using Proc Lifereg to conduct a Tobit analysis of Fair's
    (1978) model on extramarital affairs.  */

data affair;
  input y_pt z1 z2 z3 z4 z5 z6 z7 z8;
  if y_pt=0 then lower=.;
  else lower=y_pt;
  label y_pt='Number of Extramarital Affairs'
        z1='male dummy'
        z2='age'
        z3='number of years married'
        z4='child dummy'
        z5='how religious'
        z6='level of education'
        z7='occupation'
        z8='marriage satisfaction';
cards;
0	1	37	10	0	3	18	7	4
0	0	27	4	0	4	14	6	4
0	0	32	15	1	1	12	1	4
0	1	57	15	1	5	18	6	5
0	1	22	0.75	0	2	17	6	3
0	0	32	1.5	0	2	17	5	5
0	0	22	0.75	0	2	12	1	3
0	1	57	15	1	2	14	4	4
0	0	32	15	1	4	16	1	2
0	1	22	1.5	0	4	14	4	5
0	1	37	15	1	2	20	7	2
0	1	27	4	1	4	18	6	4
0	1	47	15	1	5	17	6	4
0	0	22	1.5	0	2	17	5	4
0	0	27	4	0	4	14	5	4
0	0	37	15	1	1	17	5	5
0	0	37	15	1	2	18	4	3
0	0	22	0.75	0	3	16	5	4
0	0	22	1.5	0	2	16	5	5
0	0	27	10	1	2	14	1	5
0	0	22	1.5	0	2	16	5	5
0	0	22	1.5	0	2	16	5	5
0	0	27	10	1	4	16	5	4
0	0	32	10	1	3	14	1	5
0	1	37	4	1	2	20	6	4
0	0	22	1.5	0	2	18	5	5
0	0	27	7	0	4	16	1	5
0	1	42	15	1	5	20	6	4
0	1	27	4	1	3	16	5	5
0	0	27	4	1	3	17	5	4
0	1	42	15	1	4	20	6	3
0	0	22	1.5	0	3	16	5	5
0	1	27	0.417	0	4	17	6	4
0	0	42	15	1	5	14	5	4
0	1	32	4	1	1	18	6	4
0	0	22	1.5	0	4	16	5	3
0	0	42	15	1	3	12	1	4
0	0	22	4	0	4	17	5	5
0	1	22	1.5	1	1	14	3	5
0	0	22	0.75	0	3	16	1	5
0	1	32	10	1	5	20	6	5
0	1	52	15	1	5	18	6	3
0	0	22	0.417	0	5	14	1	4
0	0	27	4	1	2	18	6	1
0	0	32	7	1	5	17	5	3
0	1	22	4	0	3	16	5	5
0	0	27	7	1	4	18	6	5
0	0	42	15	1	2	18	5	4
0	1	27	1.5	1	4	16	3	5
0	1	42	15	1	2	20	6	4
0	0	22	0.75	0	5	14	3	5
0	1	32	7	1	2	20	6	4
0	1	27	4	1	5	20	6	5
0	1	27	10	1	4	20	6	4
0	1	22	4	0	1	18	5	5
0	0	37	15	1	4	14	3	1
0	1	22	1.5	1	5	16	4	4
0	0	37	15	1	4	17	1	5
0	0	27	0.75	0	4	17	5	4
0	1	32	10	1	4	20	6	4
0	0	47	15	1	5	14	7	2
0	1	37	10	1	3	20	6	4
0	0	22	0.75	0	2	16	5	5
0	1	27	4	0	2	18	4	5
0	1	32	7	0	4	20	6	4
0	1	42	15	1	2	17	3	5
0	1	37	10	1	4	20	6	4
0	0	47	15	1	3	17	6	5
0	0	22	1.5	0	5	16	5	5
0	0	27	1.5	0	2	16	6	4
0	0	27	4	0	3	17	5	5
0	0	32	10	1	5	14	4	5
0	0	22	0.125	0	2	12	5	5
0	1	47	15	1	4	14	4	3
0	1	32	15	1	1	14	5	5
0	1	27	7	1	4	16	5	5
0	0	22	1.5	1	3	16	5	5
0	1	27	4	1	3	17	6	5
0	0	22	1.5	0	3	16	5	5
0	1	57	15	1	2	14	7	2
0	1	17.5	1.5	1	3	18	6	5
0	1	57	15	1	4	20	6	5
0	0	22	0.75	0	2	16	3	4
0	1	42	4	0	4	17	3	3
0	0	22	1.5	1	4	12	1	5
0	0	22	0.417	0	1	17	6	4
0	0	32	15	1	4	17	5	5
0	0	27	1.5	0	3	18	5	2
0	0	22	1.5	1	3	14	1	5
0	0	37	15	1	3	14	1	4
0	0	32	15	1	4	14	3	4
0	1	37	10	1	2	14	5	3
0	1	37	10	1	4	16	5	4
0	1	57	15	1	5	20	5	3
0	1	27	0.417	0	1	16	3	4
0	0	42	15	1	5	14	1	5
0	1	57	15	1	3	16	6	1
0	1	37	10	1	1	16	6	4
0	1	37	15	1	3	17	5	5
0	1	37	15	1	4	20	6	5
0	0	27	10	1	5	14	1	5
0	1	37	10	1	2	18	6	4
0	0	22	0.125	0	4	12	4	5
0	1	57	15	1	5	20	6	5
0	0	37	15	1	4	18	6	4
0	1	22	4	1	4	14	6	4
0	1	27	7	1	4	18	5	4
0	1	57	15	1	4	20	5	4
0	1	32	15	1	3	14	6	3
0	0	22	1.5	0	2	14	5	4
0	0	32	7	1	4	17	1	5
0	0	37	15	1	4	17	6	5
0	0	32	1.5	0	5	18	5	5
0	1	42	10	1	5	20	7	4
0	0	27	7	0	3	16	5	4
0	1	37	15	0	4	20	6	5
0	1	37	15	1	4	14	3	2
0	1	32	10	0	5	18	6	4
0	0	22	0.75	0	4	16	1	5
0	0	27	7	1	4	12	2	4
0	0	27	7	1	2	16	2	5
0	0	42	15	1	5	18	5	4
0	1	42	15	1	4	17	5	3
0	0	27	7	1	2	16	1	2
0	0	22	1.5	0	3	16	5	5
0	1	37	15	1	5	20	6	5
0	0	22	0.125	0	2	14	4	5
0	1	27	1.5	0	4	16	5	5
0	1	32	1.5	0	2	18	6	5
0	1	27	1.5	0	2	17	6	5
0	0	27	10	1	4	16	1	3
0	1	42	15	1	4	18	6	5
0	0	27	1.5	0	2	16	6	5
0	1	27	4	0	2	18	6	3
0	0	32	10	1	3	14	5	3
0	0	32	15	1	3	18	5	4
0	0	22	0.75	0	2	18	6	5
0	0	37	15	1	2	16	1	4
0	1	27	4	1	4	20	5	5
0	1	27	4	0	1	20	5	4
0	0	27	10	1	2	12	1	4
0	0	32	15	1	5	18	6	4
0	1	27	7	1	5	12	5	3
0	1	52	15	1	2	18	5	4
0	1	27	4	0	3	20	6	3
0	1	37	4	1	1	18	5	4
0	1	27	4	1	4	14	5	4
0	0	52	15	1	5	12	1	3
0	0	57	15	1	4	16	6	4
0	1	27	7	1	1	16	5	4
0	1	37	7	1	4	20	6	3
0	1	22	0.75	0	2	14	4	3
0	1	32	4	1	2	18	5	3
0	1	37	15	1	4	20	6	3
0	1	22	0.75	1	2	14	4	3
0	1	42	15	1	4	20	6	3
0	0	52	15	1	5	17	1	1
0	0	37	15	1	4	14	1	2
0	1	27	7	1	4	14	5	3
0	1	32	4	1	2	16	5	5
0	0	27	4	1	2	18	6	5
0	0	27	4	1	2	18	5	5
0	1	37	15	1	5	18	6	5
0	0	47	15	1	5	12	5	4
0	0	32	10	1	3	17	1	4
0	0	27	1.5	1	4	17	1	2
0	0	57	15	1	2	18	5	2
0	0	22	1.5	0	4	14	5	4
0	1	42	15	1	3	14	3	4
0	1	57	15	1	4	9	2	2
0	1	57	15	1	4	20	6	5
0	0	22	0.125	0	4	14	4	5
0	0	32	10	1	4	14	1	5
0	0	42	15	1	3	18	5	4
0	0	27	1.5	0	2	18	6	5
0	1	32	0.125	1	2	18	5	2
0	0	27	4	0	3	16	5	4
0	0	27	10	1	2	16	1	4
0	0	32	7	1	4	16	1	3
0	0	37	15	1	4	14	5	4
0	0	42	15	1	5	17	6	2
0	1	32	1.5	1	4	14	6	5
0	0	32	4	1	3	17	5	3
0	0	37	7	0	4	18	5	5
0	0	22	0.417	1	3	14	3	5
0	0	27	7	1	4	14	1	5
0	1	27	0.75	0	3	16	5	5
0	1	27	4	1	2	20	5	5
0	1	32	10	1	4	16	4	5
0	1	32	15	1	1	14	5	5
0	1	22	0.75	0	3	17	4	5
0	0	27	7	1	4	17	1	4
0	1	27	0.417	1	4	20	5	4
0	1	37	15	1	4	20	5	4
0	0	37	15	1	2	14	1	3
0	1	22	4	1	1	18	5	4
0	1	37	15	1	4	17	5	3
0	0	22	1.5	0	2	14	4	5
0	1	52	15	1	4	14	6	2
0	0	22	1.5	0	4	17	5	5
0	1	32	4	1	5	14	3	5
0	1	32	4	1	2	14	3	5
0	0	22	1.5	0	3	16	6	5
0	1	27	0.75	0	2	18	3	3
0	0	22	7	1	2	14	5	2
0	0	27	0.75	0	2	17	5	3
0	0	37	15	1	4	12	1	2
0	0	22	1.5	0	1	14	1	5
0	0	37	10	0	2	12	4	4
0	0	37	15	1	4	18	5	3
0	0	42	15	1	3	12	3	3
0	1	22	4	0	2	18	5	5
0	1	52	7	1	2	20	6	2
0	1	27	0.75	0	2	17	5	5
0	0	27	4	0	2	17	4	5
0	1	42	1.5	0	5	20	6	5
0	1	22	1.5	0	4	17	6	5
0	1	22	4	0	4	17	5	3
0	0	22	4	1	1	14	5	4
0	1	37	15	1	5	20	4	5
0	0	37	10	1	3	16	6	3
0	1	42	15	1	4	17	6	5
0	0	47	15	1	4	17	5	5
0	1	22	1.5	0	4	16	5	4
0	0	32	10	1	3	12	1	4
0	0	22	7	1	1	14	3	5
0	0	32	10	1	4	17	5	4
0	1	27	1.5	1	2	16	2	4
0	1	37	15	1	4	14	5	5
0	1	42	4	1	3	14	4	5
0	0	37	15	1	5	14	5	4
0	0	32	7	1	4	17	5	5
0	0	42	15	1	4	18	6	5
0	1	27	4	0	4	18	6	4
0	1	22	0.75	0	4	18	6	5
0	1	27	4	1	4	14	5	3
0	0	22	0.75	0	5	18	1	5
0	0	52	15	1	5	9	5	5
0	1	32	10	1	3	14	5	5
0	0	37	15	1	4	16	4	4
0	1	32	7	1	2	20	5	4
0	0	42	15	1	3	18	1	4
0	1	32	15	1	1	16	5	5
0	1	27	4	1	3	18	5	5
0	0	32	15	1	4	12	3	4
0	1	22	0.75	1	3	14	2	4
0	0	22	1.5	0	3	16	5	3
0	0	42	15	1	4	14	3	5
0	0	52	15	1	3	16	5	4
0	1	37	15	1	5	20	6	4
0	0	47	15	1	4	12	2	3
0	1	57	15	1	2	20	6	4
0	1	32	7	1	4	17	5	5
0	0	27	7	1	4	17	1	4
0	1	22	1.5	0	1	18	6	5
0	0	22	4	1	3	9	1	4
0	0	22	1.5	0	2	14	1	5
0	1	42	15	1	2	20	6	4
0	1	57	15	1	4	9	2	4
0	0	27	7	1	2	18	1	5
0	0	22	4	1	3	14	1	5
0	1	37	15	1	4	14	5	3
0	1	32	7	1	1	18	6	4
0	0	22	1.5	0	2	14	5	5
0	0	22	1.5	1	3	12	1	3
0	1	52	15	1	2	14	5	5
0	0	37	15	1	2	14	1	1
0	0	32	10	1	2	14	5	5
0	1	42	15	1	4	20	4	5
0	0	27	4	1	3	18	4	5
0	1	37	15	1	4	20	6	5
0	1	27	1.5	0	3	18	5	5
0	0	22	0.125	0	2	16	6	3
0	1	32	10	1	2	20	6	3
0	0	27	4	0	4	18	5	4
0	0	27	7	1	2	12	5	1
0	1	32	4	1	5	18	6	3
0	0	37	15	1	2	17	5	5
0	1	47	15	0	4	20	6	4
0	1	27	1.5	0	1	18	5	5
0	1	37	15	1	4	20	6	4
0	0	32	15	1	4	18	1	4
0	0	32	7	1	4	17	5	4
0	0	42	15	1	3	14	1	3
0	0	27	7	1	3	16	1	4
0	1	27	1.5	0	3	16	4	2
0	1	22	1.5	0	3	16	3	5
0	1	27	4	1	3	16	4	2
0	0	27	7	1	3	12	1	2
0	0	37	15	1	2	18	5	4
0	0	37	7	1	3	14	4	4
0	1	22	1.5	0	2	16	5	5
0	1	37	15	1	5	20	5	4
0	0	22	1.5	0	4	16	5	3
0	0	32	10	1	4	16	1	5
0	1	27	4	0	2	17	5	3
0	0	22	0.417	0	4	14	5	5
0	0	27	4	0	2	18	5	5
0	1	37	15	1	4	18	5	3
0	1	37	10	1	5	20	7	4
0	0	27	7	1	2	14	4	2
0	1	32	4	1	2	16	5	5
0	1	32	4	1	2	16	6	4
0	1	22	1.5	0	3	18	4	5
0	0	22	4	1	4	14	3	4
0	0	17.5	0.75	0	2	18	5	4
0	1	32	10	1	4	20	4	5
0	0	32	0.75	0	5	14	3	3
0	1	37	15	1	4	17	5	3
0	1	32	4	0	3	14	4	5
0	0	27	1.5	0	2	17	3	2
0	0	22	7	1	4	14	1	5
0	1	47	15	1	5	14	6	5
0	1	27	4	1	1	16	4	4
0	0	37	15	1	5	14	1	3
0	1	42	4	1	4	18	5	5
0	0	32	4	1	2	14	1	5
0	1	52	15	1	2	14	7	4
0	0	22	1.5	0	2	16	1	4
0	1	52	15	1	4	12	2	4
0	0	22	0.417	0	3	17	1	5
0	0	22	1.5	0	2	16	5	5
0	1	27	4	1	4	20	6	4
0	0	32	15	1	4	14	1	5
0	0	27	1.5	0	2	16	3	5
0	1	32	4	0	1	20	6	5
0	1	37	15	1	3	20	6	4
0	0	32	10	0	2	16	6	5
0	0	32	10	1	5	14	5	5
0	1	37	1.5	1	4	18	5	3
0	1	32	1.5	0	2	18	4	4
0	0	32	10	1	4	14	1	4
0	0	47	15	1	4	18	5	4
0	0	27	10	1	5	12	1	5
0	1	27	4	1	3	16	4	5
0	0	37	15	1	4	12	4	2
0	0	27	0.75	0	4	16	5	5
0	0	37	15	1	4	16	1	5
0	0	32	15	1	3	16	1	5
0	0	27	10	1	2	16	1	5
0	1	27	7	0	2	20	6	5
0	0	37	15	1	2	14	1	3
0	1	27	1.5	1	2	17	4	4
0	0	22	0.75	1	2	14	1	5
0	1	22	4	1	4	14	2	4
0	1	42	0.125	0	4	17	6	4
0	1	27	1.5	1	4	18	6	5
0	1	27	7	1	3	16	6	3
0	0	52	15	1	4	14	1	3
0	1	27	1.5	0	5	20	5	2
0	0	27	1.5	0	2	16	5	5
0	0	27	1.5	0	3	17	5	5
0	1	22	0.125	0	5	16	4	4
0	0	27	4	1	4	16	1	5
0	0	27	4	1	4	12	1	5
0	0	47	15	1	2	14	5	5
0	0	32	15	1	3	14	5	3
0	1	42	7	1	2	16	5	5
0	1	22	0.75	0	4	16	6	4
0	1	27	0.125	0	3	20	6	5
0	1	32	10	1	3	20	6	5
0	0	22	0.417	0	5	14	4	5
0	0	47	15	1	5	14	1	4
0	0	32	10	1	3	14	1	5
0	1	57	15	1	4	17	5	5
0	1	27	4	1	3	20	6	5
0	0	32	7	1	4	17	1	5
0	0	37	10	1	4	16	1	5
0	0	32	10	1	1	18	1	4
0	0	22	4	0	3	14	1	4
0	0	27	7	1	4	14	3	2
0	1	57	15	1	5	18	5	2
0	1	32	7	1	2	18	5	5
0	0	27	1.5	0	4	17	1	3
0	1	22	1.5	0	4	14	5	5
0	0	22	1.5	1	4	14	5	4
0	0	32	7	1	3	16	1	5
0	0	47	15	1	3	16	5	4
0	0	22	0.75	0	3	16	1	5
0	0	22	1.5	1	2	14	5	5
0	0	27	4	1	1	16	5	5
0	1	52	15	1	4	16	5	5
0	1	32	10	1	4	20	6	5
0	1	47	15	1	4	16	6	4
0	0	27	7	1	2	14	1	2
0	0	22	1.5	0	4	14	4	5
0	0	32	10	1	2	16	5	4
0	0	22	0.75	0	2	16	5	4
0	0	22	1.5	0	2	16	5	5
0	0	42	15	1	3	18	6	4
0	0	27	7	1	5	14	4	5
0	1	42	15	1	4	16	4	4
0	0	57	15	1	3	18	5	2
0	1	42	15	1	3	18	6	2
0	0	32	7	1	2	14	1	2
0	1	22	4	0	5	12	4	5
0	0	22	1.5	0	1	16	6	5
0	0	22	0.75	0	1	14	4	5
0	0	32	15	1	4	12	1	5
0	1	22	1.5	0	2	18	5	3
0	1	27	4	1	5	17	2	5
0	0	27	4	1	4	12	1	5
0	1	42	15	1	5	18	5	4
0	1	32	1.5	0	2	20	7	3
0	1	57	15	0	4	9	3	1
0	1	37	7	0	4	18	5	5
0	1	52	15	1	2	17	5	4
0	1	47	15	1	4	17	6	5
0	0	27	7	0	2	17	5	4
0	0	27	7	1	4	14	5	5
0	0	22	4	0	2	14	3	3
0	1	37	7	1	2	20	6	5
0	1	27	7	0	4	12	4	3
0	1	42	10	1	4	18	6	4
0	0	22	1.5	0	3	14	1	5
0	0	22	4	1	2	14	1	3
0	0	57	15	0	4	20	6	5
0	1	37	15	1	4	14	4	3
0	0	27	7	1	3	18	5	5
0	0	17.5	10	0	4	14	4	5
0	1	22	4	1	4	16	5	5
0	0	27	4	1	2	16	1	4
0	0	37	15	1	2	14	5	1
0	0	22	1.5	0	5	14	1	4
0	1	27	7	1	2	20	5	4
0	1	27	4	1	4	14	5	5
0	1	22	0.125	0	1	16	3	5
0	0	27	7	1	4	14	1	4
0	0	32	15	1	5	16	5	3
0	1	32	10	1	4	18	5	4
0	0	32	15	1	2	14	3	4
0	0	22	1.5	0	3	17	5	5
0	1	27	4	1	4	17	4	4
0	0	52	15	1	5	14	1	5
0	0	27	7	1	2	12	1	2
0	0	27	7	1	3	12	1	4
0	0	42	15	1	2	14	1	4
0	0	42	15	1	4	14	5	4
0	1	27	7	1	4	14	3	3
0	1	27	7	1	2	20	6	2
0	0	42	15	1	3	12	3	3
0	1	27	4	1	3	16	3	5
0	0	27	7	1	3	14	1	4
0	0	22	1.5	0	2	14	4	5
0	0	27	4	1	4	14	1	4
0	0	22	4	0	4	14	5	5
0	0	22	1.5	0	2	16	4	5
0	1	47	15	0	4	14	5	4
0	1	37	10	1	2	18	6	2
0	1	37	15	1	3	17	5	4
0	0	27	4	1	2	16	1	4
3	1	27	1.5	0	3	18	4	4
3	0	27	4	1	3	17	1	5
7	1	37	15	1	5	18	6	2
12	0	32	10	1	3	17	5	2
1	1	22	0.125	0	4	16	5	5
1	0	22	1.5	1	2	14	1	5
12	1	37	15	1	4	14	5	2
7	0	22	1.5	0	2	14	3	4
2	1	37	15	1	2	18	6	4
3	0	32	15	1	4	12	3	2
1	0	37	15	1	4	14	4	2
7	0	42	15	1	3	17	1	4
12	0	42	15	1	5	9	4	1
12	1	37	10	1	2	20	6	2
12	0	32	15	1	3	14	1	2
3	1	27	4	0	1	18	6	5
7	1	37	10	1	2	18	7	3
7	0	27	4	0	3	17	5	5
1	1	42	15	1	4	16	5	5
1	0	47	15	1	5	14	4	5
7	0	27	4	1	3	18	5	4
1	0	27	7	1	5	14	1	4
12	1	27	1.5	1	3	17	5	4
12	0	27	7	1	4	14	6	2
3	0	42	15	1	4	16	5	4
7	0	27	10	1	4	12	7	3
1	1	27	1.5	0	2	18	5	2
1	1	32	4	0	4	20	6	4
1	0	27	7	1	3	14	1	3
3	0	32	10	1	4	14	1	4
3	1	27	4	1	2	18	7	2
1	0	17.5	0.75	0	5	14	4	5
1	0	32	10	1	4	18	1	5
7	0	32	7	1	2	17	6	4
7	1	37	15	1	2	20	6	4
7	0	37	10	0	1	20	5	3
12	0	32	10	1	2	16	5	5
7	1	52	15	1	2	20	6	4
7	0	42	15	1	1	12	1	3
1	1	52	15	1	2	20	6	3
2	1	37	15	1	3	18	6	5
12	0	22	4	0	3	12	3	4
12	1	27	7	1	1	18	6	2
1	1	27	4	1	3	18	5	5
12	1	47	15	1	4	17	6	5
12	0	42	15	1	4	12	1	1
7	1	27	4	0	3	14	3	4
7	0	32	7	1	4	18	4	5
1	1	32	0.417	1	3	12	3	4
3	1	47	15	1	5	16	5	4
12	1	37	15	1	2	20	5	4
7	1	22	4	1	2	17	6	4
1	1	27	4	0	2	14	4	5
7	0	52	15	1	5	16	1	3
1	1	27	4	0	3	14	3	3
1	0	27	10	1	4	16	1	4
1	1	32	7	1	3	14	7	4
7	1	32	7	1	2	18	4	1
3	1	22	1.5	0	1	14	3	2
7	1	22	4	1	3	18	6	4
7	1	42	15	1	4	20	6	4
2	0	57	15	1	1	18	5	4
7	0	32	4	1	3	18	5	2
1	1	27	4	1	1	16	4	4
7	1	32	7	1	4	16	1	4
2	1	57	15	1	1	17	4	4
7	0	42	15	1	4	14	5	2
7	1	37	10	1	1	18	5	3
3	1	42	15	1	3	17	6	1
1	0	52	15	1	3	14	4	4
2	0	27	7	1	3	17	5	3
12	1	32	7	1	2	12	4	2
1	1	22	4	0	4	14	2	5
3	1	27	7	1	3	18	6	4
12	0	37	15	1	1	18	5	5
7	0	32	15	1	3	17	1	3
7	0	27	7	0	2	17	5	5
1	0	32	7	1	3	17	5	3
1	1	32	1.5	1	2	14	2	4
12	0	42	15	1	4	14	1	2
7	1	32	10	1	3	14	5	4
7	1	37	4	1	1	20	6	3
1	0	27	4	1	2	16	5	3
12	0	42	15	1	3	14	4	3
1	1	27	10	1	5	20	6	5
12	1	37	10	1	2	20	6	2
12	0	27	7	1	1	14	3	3
3	0	27	7	1	4	12	1	2
3	1	32	10	1	2	14	4	4
12	0	17.5	0.75	1	2	12	1	3
12	0	32	15	1	3	18	5	4
2	0	22	7	0	4	14	4	3
1	1	32	7	1	4	20	6	5
7	1	27	4	1	2	18	6	2
1	0	22	1.5	1	5	14	5	3
12	0	32	15	0	3	17	5	1
12	0	42	15	1	2	12	1	2
7	1	42	15	1	3	20	5	4
12	1	32	10	0	2	18	4	2
12	0	32	15	1	3	9	1	1
7	1	57	15	1	5	20	4	5
12	1	47	15	1	4	20	6	4
2	0	42	15	1	2	17	6	3
12	1	37	15	1	3	17	6	3
12	1	37	15	1	5	17	5	2
7	1	27	10	1	2	20	6	4
2	1	37	15	1	2	16	5	4
12	0	32	15	1	1	14	5	2
7	1	32	10	1	3	17	6	3
2	1	37	15	1	4	18	5	1
7	0	27	1.5	0	2	17	5	5
3	0	47	15	1	2	17	5	2
12	1	37	15	1	2	17	5	4
12	0	27	4	0	2	14	5	5
2	0	27	10	1	4	14	1	5
1	0	22	4	1	3	16	1	3
12	1	52	7	0	4	16	5	5
2	0	27	4	1	1	16	3	5
7	0	37	15	1	2	17	6	4
2	0	27	4	0	1	17	3	1
12	0	17.5	0.75	1	2	12	3	5
7	0	32	15	1	5	18	5	4
7	0	22	4	0	1	16	3	5
2	1	32	4	1	4	18	6	4
1	0	22	1.5	1	3	18	5	2
3	0	42	15	1	2	17	5	4
1	1	32	7	1	4	16	4	4
12	1	37	15	0	3	14	6	2
1	1	42	15	1	3	16	6	3
1	1	27	4	1	1	18	5	4
2	1	37	15	1	4	20	7	3
7	1	37	15	1	3	20	6	4
3	1	22	1.5	0	2	12	3	3
3	1	32	4	1	3	20	6	2
2	1	32	15	1	5	20	6	5
12	0	52	15	1	1	18	5	5
12	1	47	15	0	1	18	6	5
3	0	32	15	1	4	16	4	4
7	0	32	15	1	3	14	3	2
7	0	27	7	1	4	16	1	2
12	1	42	15	1	3	18	6	2
7	0	42	15	1	2	14	3	2
12	1	27	7	1	2	17	5	4
3	1	32	10	1	4	14	4	3
7	1	47	15	1	3	16	4	2
1	1	22	1.5	1	1	12	2	5
7	0	32	10	1	2	18	5	4
2	1	32	10	1	2	17	6	5
2	1	22	7	1	3	18	6	2
1	0	32	15	1	3	14	1	5
;

proc lifereg data=affair;
  model (lower,y_pt) = z1-z8 / d=normal;
  model (lower,y_pt) = z1 z2 z3 z4 z5 z7 z8 / d=normal;
  model (lower,y_pt) = z1 z2 z3 z4 z5 z8 / d=normal;
  model (lower,y_pt) = z1 z2 z3 z5 z8 / d=normal;
  model (lower,y_pt) = z2 z3 z5 z8 / d=normal;

title1 'Estimation of Tobit Model of Extramarital Affairs: Fair (1978)';
title2 'Using PROC LIFEREG';

  run;

proc qlim data=affair;
  model y_pt = z2 z3 z5 z8 / type=tobit;
    endogenous censored = (y_pt);

title1 'Estimation of Tobit Model of Extramarital Affairs: Fair (1978)';
title2 'Using PROC QLIM';

  run;