st: Data Manipulation

["Raphael Fraser" <raphael.fraser@gmail.com>]

I have the following data:

id  vnum  msys1a   msys1b date1   msys2a   msys2b  date2   msys3a
msys3b  date3
304  1     110      110   02jan1960              .        .
.        107      120   04jan1960
304  2     110      110   02jan1960              .        .
.        107      120   04jan1960
304  3     110      110   02jan1960              .        .
.        107      120   04jan1960
545  1       .        .                    .           109       99
10apr1960  87      130   23aug1961
545  2       .        .                    .           109       99
10apr1960  87      130   23aug1961
545  3       .        .                    .           109       99
10apr1960  87      130   23aug1961

 I would like to put it in this format:

id        date     vnum   msys1   msys2   msys3
304   02jan1960      1     110     110     111
304               .        2      .        .          .
304   04jan1960      3     107     120      96
545               .        1      .        .          .
545   10apr1960      2     109      99     100
545   23aug1961     3      87     130     130

Raphael
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