Dependent Variable: Y
Method: ML - Binary Probit (Quadratic hill climbing)
Date: 01/05/11 Time: 19:10
Sample: 1 20
Included observations: 20
Convergence achieved after 500 iterations
WARNING: Singular covariance - coefficients are not unique
WARNING: complete separation observed at estimated parameters
(results may not be valid)
Covariance matrix computed using second derivatives
Variable Coefficient Std. Error z-Statistic Prob.
X1 1.174425 NA NA NA
X2 -0.195953 NA NA NA
X3 -1.621803 NA NA NA
X4 -0.089234 NA NA NA
X5 -0.900224 NA NA NA
X6 2.216829 NA NA NA
X7 0.748945 NA NA NA
X8 0.306244 NA NA NA
X9 -3.344928 NA NA NA
X10 -1.761673 NA NA NA
C -21.22178 NA NA NA
McFadden R-squared 1.000000 Mean dependent var 0.350000
S.D. dependent var 0.489360 S.E. of regression 1.54E-27
Akaike info criterion 1.100000 Sum squared resid 2.13E-53
Schwarz criterion 1.647653 Log likelihood 0.000000
Hannan-Quinn criter. 1.206908 Restr. log likelihood -12.94893
LR statistic 25.89787 Avg. log likelihood 0.000000
Prob(LR statistic) 0.003880
Obs with Dep=0 13 Total obs 20
Obs with Dep=1 7
用eviews中的logit分析后出现这样的结果的原因?请指教指教,吾不胜感激