如下回归结果，想请问一下里面的LR chi2(4)，Prob > chi2，Pseudo R2（表示R平方?）, z, P>z ,  [95% Conf.
Interval] 各表示什么含义呢？怎么看回归的总体你和程度呢？（Prob > chi2）越小越好吗？怎么判断系数的显著性呢？


最下面那一句Note: 7 failures and 1 success completely determined. 是什么意思呢？急~多谢多谢！

. logit div e1a da1a v1a lowerper
Iteration 0: log likelihood = -8224.8057
Iteration 1: log likelihood = -7443.9805
Iteration 2: log likelihood = -7111.8039
Iteration 3: log likelihood = -7046.0646
Iteration 4: log likelihood = -7042.148
Iteration 5: log likelihood = -7042.0794
Logistic regression Number of obs =	11929
LR chi2(4) =	2365.45
Prob > chi2 =	0.0000
Log likelihood = -7042.0794 Pseudo R2 =	0.1438
div Coef. Std. Err. z P>z [95% Conf.	Interval]
e1a 15.83987 .5389571 29.39 0.000 14.78353	16.8962
da1a -.0240573 .0377254 -0.64 0.524 -.0979978	.0498832
v1a -.2223392 .0162348 -13.70 0.000 -.2541588	-.1905196
lowerper 1.423612 .0753527 18.89 0.000 1.275924	1.571301
_cons -.7339237 .0514105 -14.28 0.000 -.8346864	-.633161
Note: 7 failures and 1 success completely determined.