[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: Proportion tests for non-binary variables
On 4/11/06, Herve STOLOWY <firstname.lastname@example.org> wrote:
> I would like to test the equality of proportions of two variables which are not binary. Each variable can have four values (0, 1, 2 and 3). (To be more precise, the original variable is the same but are applied to two different populations, the total sample and a restricted sample. I created two different variables. With -tabulate-, I get easily the frequencies of both variables).
> I can't use -prtest- and -ztest- because these two commands require, to my knowledge, binary variables.
> My comparison should work on unpaired data.
> I searched in Stata on "proportions" but did not find any command for that purpose. I missed maybe something. Would you have an idea?
How about a trend-test to detect differences between the two groups
(sample and restricted). In Stata this is implemented as the command
"Try to learn something about everything and everything about
something." - Thomas H. Huxley
Email - email@example.com / firstname.lastname@example.org
Website - http://slack.ser.man.ac.uk/
Blog - http://slack---line.blogspot.com/
Flickr - http://www.flickr.com/photos/slackline/
* For searches and help try: