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现有多层模型几个地方不太明白特向大家请教,谢谢!
1、xtmelogit sfzrzc(是否中产) hzage(户主年龄) hzage2(户主年两平方) hzgender(户主性别) edu(户主教育程度) danwei(单位性质) gdp(GDP) || y(年份):
在这个命令中GDP是年份层次变量,放在固定效应一起是否正确,如不正确年份层次变量的加入应该怎么写入命令?
2、后一个模型加入了户主教育程度的随机效应,但是输出的结果如何看随机效应部分的检验结果,outreg2也没有给出随机效应的具体检验结果?如何看到随机效应的检验结果
xtmelogit zcxn hzage hzage2 hzgender edu danwei || y:
outreg2 using abc,replace
estimates store r_edu
xtmelogit sfzrzc hzage hzage2 hzgender edu danwei || y:danwei edu , covariance(unstructured)
outreg2 using abc
estimates store r_edu_corr
Mixed-effects logistic regression Number of obs = 6203
Group variable: y Number of groups = 22
Obs per group: min = 100
avg = 282.0
max = 647
Integration points = 7 Wald chi2(5) = 281.08
Log likelihood = -3629.0663 Prob > chi2 = 0.0000
------------------------------------------------------------------------------
sfsrzc | Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
hzage | -.0722201 .0213959 -3.38 0.001 -.1141554 -.0302849
hzage2 | .0008893 .0002363 3.76 0.000 .0004261 .0013525
hzgender | .3068349 .0638111 4.81 0.000 .1817674 .4319025
edu | .1686278 .0114248 14.76 0.000 .1462355 .1910201
danwei | .2785676 .0661656 4.21 0.000 .1488854 .4082499
_cons | -2.059202 .5146946 -4.00 0.000 -3.067984 -1.050419
------------------------------------------------------------------------------
------------------------------------------------------------------------------
Random-effects Parameters | Estimate Std. Err. [95% Conf. Interval]
-----------------------------+------------------------------------------------
y: Independent |
sd(edu) | 6.21e-09 .0074862 0 .
sd(danwei) | 3.48e-10 .0953869 0 .
sd(_cons) | .1986022 .0507113 .1204031 .32759
------------------------------------------------------------------------------
LR test vs. logistic regression: chi2(3) = 16.41 Prob > chi2 = 0.0009
Note: LR test is conservative and provided only for reference.
下面是outreg2输出的结果,没有给出随机效应的检验结果
v1 v2 v3 v4 v5 Notes_Titles
(1) (2) (3) (4)
VARIABLES eq1 lns1_1_1 lns1_1_2 lns1_1_3 Standard errors in parentheses
*** p<0.01, ** p<0.05, * p<0.1
hzage -0.0722***
(0.0214)
hzage2 0.000889***
(0.000236)
hzgender 0.307***
(0.0638)
edu 0.169***
(0.0114)
danwei 0.279***
(0.0662)
Constant -2.059*** -18.90 -21.78 -1.616***
(0.515) (1.205e+06) (2.745e+08) (0.255)
Observations 6,203 6,203 6,203 6,203
Number of groups 22 22 22 22
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