在计算加成率的时候报错是为什么呀???有没有知道的
. dlw
variable const not found
st_data(): 3598 Stata returned error
GMM_DLW(): - function returned error
opt__calluser0_d(): - function returned error
opt__eval_nm(): - function returned error
opt__looputil_iter0_nm(): - function returned error
opt__loop_nm(): - function returned error
opt__loop(): - function returned error
optimize(): - function returned error
DLW(): - function returned error
<istmt>: - function returned error