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st: use of expand

From   Ann Fitzmaurice <>
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

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
tab CA would - if stata 8 is case sensitive is it possible to turn it off



Ann Fitzmaurice
Medical Statistician
Dugald Baird Centre for Research on Women's Health
Aberdeen Maternity Hospital
University of Aberdeen
Aberdeen AB25 2ZL

Tel . 01224 553876

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