st: keep variables

[ncdcta00@uniroma2.it]

Dear Statalist,
I have a simple and stupid  problem to selection some variables, but I  
don't know as to resolve this problem:
I have this dataset
id       analt      episodi
1        1999         1
1        2002         2
2        2002         1
2        2003         2
2        2003         3
3        2004         1
3        2005         2


I want to selection all the id that analt>2001 & the first episodi  
start with ==1, so I want to take  id 2 and id 3
id    analt  episodi
2     2002       1
2     2002       2
3     2004       1
3     2005       2

How can I do this?
Thanks a lot.


Catia


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