On Thu, Jul 23, 2009 at 9:11 AM, Rune Nielsen<[email protected]> wrote:
> Dear all!
> I've tried searching the archives concerning this without finding it
> explicitly.
>
> I've got two categorical variables, one ordered with three groups, and the
> other as an dichotomous outcome. Can I use the nptrend command to test for
> trend of proportion over the three (ordered) groups?
>
Yes you can. You may find the Wikipedia article and the references it
cites informative...
http://en.wikipedia.org/wiki/Cochran-Armitage_test_for_trend
Neil
--
"The combination of some data and an aching desire for an answer does
not ensure that a reasonable answer can be extracted from a given body
of data." ~ John Tukey (1986), "Sunset salvo". The American
Statistician 40(1).
Email - [email protected]
Website - http://slack.ser.man.ac.uk/
Photos - http://www.flickr.com/photos/slackline/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
