capt log close log using 771ml4, replace adotype norm1_lf set seed 20060320 clear set obs 1000 g double x = _n/_N g double x2 = x^2 summ x, meanonly g double z = (x-r(mean))*invnormal(uniform()) g double y = 5 + 2*x + - 3*x2 + z summ ml model lf norm1_lf (mu: y = x x2) (gamma:x) * ml check ml maximize log close log2html 771ml4.smcl, replace