我想请问一下在stata里用box-cox分析,出来的结果是什么意思,比如
Fitting comparison model
Iteration 0: log likelihood = -2103.4002
Iteration 1: log likelihood = -2068.0586
Iteration 2: log likelihood = -2068.0499
Iteration 3: log likelihood = -2068.0499
Fitting full model
Iteration 0: log likelihood = -1905.2948
Iteration 1: log likelihood = -1886.3504
Iteration 2: log likelihood = -1886.3227
Iteration 3: log likelihood = -1886.3227
Number of obs = 230
LR chi2(19) = 363.45
Log likelihood = -1886.3227 Prob > chi2 = 0.000
------------------------------------------------------------------------------
price | Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
/theta | .3819503 .1043515 3.66 0.000 .1774252 .5864755
------------------------------------------------------------------------------
Estimates of scale-variant parameters
----------------------------
| Coef.
-------------+--------------
Notrans |
CBD | -.0030143
floor | 2.050028
decroate | 1.026109
wuye | 4.219442
lvhua | -2.995286
park | .9033995
market | 2.465311
community | .9709194
garage | 1.329125
metro0 | -5.788976
metro1 | -5.537079
metro2 | -4.181564
metro3 | -6.414331
QY_2002 | -4.811911
QY_2003 | -3.805808
QY_2005 | 2.496602
QY_2004 | 1.488449
QY_2006 | 6.343643
QY_2007 | 14.94099
_cons | 58.74944
-------------+--------------
/sigma | 5.087228
----------------------------
---------------------------------------------------------
Test Restricted LR statistic P-value
H0: log likelihood chi2 Prob > chi2
---------------------------------------------------------
theta = -1 -1953.5332 134.42 0.000
theta = 0 -1892.5727 12.50 0.000
theta = 1 -1905.2948 37.94 0.000
---------------------------------------------------------
如何看这个非线性回归好不好?谢谢!