执行陈传波stata十八讲第十五章广义最小二乘估计出现错误
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clear
set obs 100
gen x1=uniform()
gen x2=1+3*invnorm(uniform())
gen e=invnorm(uniform())
gen u2=exp(2*ln(x1))*e
gen u3=exp(2*ln(x2))*e
gen u4=exp(ln(x1)+ln(x2))*e
gen y1=1+3*x1+5*x2+e ...
2023-6-13 08:18 - econey - Stata专版