本人stata初学者
在用蒙特卡罗法模拟大样本理论时跟着陈强老师的课程运行以下命令
program chi2data,rclass
drop _all
set obs 20
gen x=rchi2(1)
gen e=chi2(10)-10
gen y=1+2*x+e
reg y x
return scalar b=_b[x]
end
simulate bhat=r(b),seed(10101) reps(10000) nodots:chi2data
sum bhat
报错invalid syntax
an error occurred when simulate executed chi2data
请问应该怎么改正