st: random values

[Knag Anne-Christine <anne-christine.knag@imr.no>]

Dear Statalist-members,
I have a question about how to pull out random values.
The data may be summarized as this:

group    day                 daily production
1        42                     1025200
1        45                     52000
1        etc (up to day 145)    etc
2        36                     2355000
2        37                     450003
2        etc(up to day 150)     etc
3        65
up to group 9