test my posting

* Example generated by -dataex-. To install: ssc install dataex
clear
input byte inst float operation byte centiles int dose
1 1 50  30
1 2 50  28
1 1 80  45
1 2 80  42
1 1 90  55
1 2 90  55
1 1 95  76
1 2 95  70
2 1 50  60
2 2 50  40
2 1 80  90
2 2 80  70
2 1 90 120
2 2 90 120
2 1 95 160
2 2 95 155
3 1 50  15
3 2 50  15
3 1 80  20
3 2 80  21
3 1 90  30
3 2 90  22
3 1 95  38
3 2 95  36
end