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Date:         Thu, 26 Nov 2009 04:04:49 -0800
Reply-To:     Emanuela <manup9@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Emanuela <manup9@GMAIL.COM>
Organization: http://groups.google.com
Subject:      reapeted measurements
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset=ISO-8859-1

Hello everybody,

I have collected some measurements of the same thing at different time.

I would like to see if there are differences among the measures I took. following is an example: For the same subject there are different measurements at different date time:

date measure 11/8/2006 123.10 2/7/2007 122.93 5/28/2007 122.80 12/17/2007 122.80 12/3/2008 122.92 2/26/2009 122.79

I tried with the following

proc glm ; class date; model measure= date; means date\ tuckey; run;

I have problems with this model.. the F- value goes to infinity ... I am wrong but I have no idea on how to procede.

thank you in advance

Emanuela


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