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st: use of expand


From   Ann Fitzmaurice <a.e.fitzmaurice@abdn.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: use of expand
Date   Tue, 27 Apr 2004 10:28:18 +0100

Good morning

i have a data set with four variables, year ca age and n, where n is the number of each combination or the other three
e.g.

yeat ca age n
1995 1 13 309
1995 1 14 420
1995 2 13 363

the years can range from 1995-2002, ca from 1-6 and age from 13-19

what i would like to do is to expand the data set that i have one line for each case so for the first line above i would have 309 duplicated lines

i have try using expand but it does not give me the data set i want (i know the total n when expanded)

on another point , is stata8 case sensitive , i tried the following
tab ca - this would not work
but
tab CA would - if stata 8 is case sensitive is it possible to turn it off

regards

ann

------------
Ann Fitzmaurice
Medical Statistician
Dugald Baird Centre for Research on Women's Health
Aberdeen Maternity Hospital
University of Aberdeen
Aberdeen AB25 2ZL
Uk
a.e.fitzmaurice@abdn.ac.uk

Tel . 01224 553876

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