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st: F(1,12317)=. ?


From   Julia Gamas <jagamas@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: F(1,12317)=. ?
Date   Mon, 8 May 2006 19:48:47 -0700 (PDT)

Hi,
after running a regression I get the following output.
 My question is why is F(1,12317) equal to "." ? 
Since the regression is skipping missing values in the
 data I can't figure out what else is making this
happen.  Any ideas on explaining this will be
appreciated.


Source	SS	df       MS	Number of obs =	12318
			F(  1, 12317)	=       .
Model	458410.071	1  458410.071	Prob > F	=  0.0000
Residual	40642.8979	12317  3.29974002	R-squared	= 
0.9186
			Adj R-squared	=  0.9186
Total	499052.969	12318  40.5141232	Root MSE	=  1.8165

				
t	Coef.	Std. Err.      t	P>t     [95% Conf.	Interval]
				
d	-1.442858	.0038711  -372.72	0.000    -1.450446
-1.43527
				





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