voodoo 发表于 2013-6-9 15:52
set obs 1000
gen x = rnormal(0.004, 0.02)

ipony 发表于 2013-6-9 15:55
多谢老师，你看我这样行不行？
set obs 1000
g x=0.004+invnormal(uniform())*0.02

voodoo 发表于 2013-6-9 15:59
也可以，就是绕了一圈。

voodoo 发表于 2013-6-9 15:52
set obs 1000
gen x = rnormal(0.004, 0.02)