Date:         Wed, 17 Sep 2003 07:56:55 -0700
Reply-To:     Dale McLerran <stringplayer_2@YAHOO.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Dale McLerran <stringplayer_2@YAHOO.COM>
Subject:      Re: Comparing regression parameters?
Comments: To: Jonathan Greenberg <greenberg@UCDAVIS.EDU>
In-Reply-To:  <TtQ9b.6631$BS5.6539@newsread4.news.pas.earthlink.net>
Content-Type: text/plain; charset=us-ascii

Jonathan,

If you use PROC REG to fit your regression model, then you can
employ a TEST statement to test whether the parameter associated
with variable X is equal to some specified value.  Thus, you
could code

    proc reg data=mydata;
      model y = x / noint;
      test x=z;
    run;

Dale


--- Jonathan Greenberg <greenberg@UCDAVIS.EDU> wrote:
> I was hoping someone could help me out getting this done in SAS:
>
> I have two continuous variables, X and Y that I regress with no
> intercept,
> so the equation ends up being:
>
> Y = MX
>
> My question is, does M significantly differ from some arbitrary value
> Z (Z
> <> 0 in this case)?  How do I do this in SAS?  Is there someplace I
> can
> just type in my expected Z and have SAS spit out a p-value?  Thanks!
>
> --j
>
> --
> Jonathan Greenberg
> Graduate Group in Ecology, U.C. Davis
> http://www.cstars.ucdavis.edu/~jongreen
> http://www.cstars.ucdavis.edu
> AIM: jgrn307 or jgrn3007
> MSN: jgrn307@msn.com or jgrn3007@msn.com


=====
---------------------------------------
Dale McLerran
Fred Hutchinson Cancer Research Center
mailto: dmclerra@fhcrc.org
Ph:  (206) 667-2926
Fax: (206) 667-5977
---------------------------------------

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