Assuming your data are set up appropriately, try:
For num 1/5: tabodds case year [fweight=freq] if cat == X
-p
______________________________
Paul F. Visintainer, PhD
Professor and Chairman
Department of Epidemiology and Biostatistics
School of Public Health
New York Medical College
Valhalla, NY 10595
PH: (914) 594-4804
FX: (914) 594-4853
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Sean Shu
Sent: Thursday, March 02, 2006 2:21 PM
To: [email protected]
Subject: st: tabodds command with 'if' option
Hi there,
I have a cross-sectional time series dataset. I want to find whether any
trend is presented over the years for different categories. So I used
tabodds command. But I want to apply the command for different category
seperately. so I write the command syntax over the dataset attached:
> tabodds case year [fweight=freq][if cat = 1]
> tabodds case year [fweight=freq][if cat = 2]
...
> tabodds case year [fweight=freq][if cat = 5]
Can you tell what's wrong with it? and Do I need write syntax to loop
the tabodds five time?
Thank you very much!
Sean Shu
HKPR District Public Health Unit
Ontario, Canada
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
