jjjj6666 发表于 2014-2-25 03:22
ttest doesn't allow for weight.  Is "type" a frequency?

jjjj6666 发表于 2014-2-26 21:53
There is no way for using weight in ttest.  For survey data, you can use survey mean first and then  ...

黄剑焜 发表于 2014-2-27 11:51
请问怎么进行svy下的wald检验。svyset之后svy：mean a1，over(a2)；然后应该怎么操作？