Dependent Variable: CACC/AST   
Method: Least Squares   
Date: 05/30/12   Time: 20:29   
Sample: 1 372   
Included observations: 372   
CACC/AST=C(1)/AST+C(2)*(DREV-DREC)/AST+C(3)*PPE/AST+C(4)*LA   
        /AST+C(5)*DCFO/AST+C(6)*DEXP/AST   
   
Variable Coefficient Std. Error t-Statistic Prob.  
   
C(1) -3.46E+08 27714883 -12.50115 0.0000
C(2) 0.147360 0.057142 2.578824 0.0103
C(3) -1.132037 0.087629 -12.91854 0.0000
C(4) 2.288964 0.367102 6.235229 0.0000
C(5) -0.608613 0.244613 -2.488063 0.0133
C(6) 1.342720 0.384939 3.488138 0.0005
   
R-squared -6.056817     Mean dependent var  -0.930593
Adjusted R-squared -6.153222     S.D. dependent var  0.240710
S.E. of regression 0.643792     Akaike info criterion  1.973115
Sum squared resid 151.6952     Schwarz criterion  2.036323
Log likelihood -360.9993     Hannan-Quinn criter.  1.998216
Durbin-Watson stat 1.196852   
   
拟合优度为负数，为什么？请教高手！我凌乱了... ...