stata: 为什么svy: tab命令,在使 用asdoc输出后 结果就变了呢?
例如:
asdoc svy: tab home_socialrelief class13 if a02 == 1, replace
结果是:
home_socia | class13
lrelief | Lincome Mincome Hincome | Total
-----------+---------------------------------+----------
0 | 9,199 5,498 233 | 14,930
1 | 1,510 447 17 | 1,974
-----------+---------------------------------+----------
Total | 10,709 5,945 250 | 16,904
而svy: tab home_socialrelief class13 if a02 == 1
结果是:
Number of strata = 5 Number of obs = 5,388
Number of PSUs = 5,388 Population size = 10,853.18
Design df = 5,383
----------------------------------------------
home_soci | class13
alrelief | Lincome Mincome Hincome Total
----------+-----------------------------------
0 | .5592 .3198 .0155 .8945
1 | .0752 .029 .0014 .1055
|
Total | .6344 .3487 .0169 1
----------------------------------------------
Key: cell proportion