# ha2 - patient has had 2nd heart attack.
# ang - patient has had anger management treatment.
# sco - score on a trait anxiety scale; higher = more anxious
ha2 ang sco
1   1  70
1   1  80
1   1  50
1   0  60
1   0  40
1   0  65
1   0  75
1   0  80
1   0  70
1   0  60
0   1  65
0   1  50
0   1  45
0   1  35
0   1  40
0   1  50
0   0  55
0   0  45
0   0  50
0   0  60