秋小哲 发表于 2017-8-11 14:56 
最好扩展决策单元数量,我还没有见过用9个决策单元来做dea分析的论文。
the final mle estimates are :
coefficient standard-error t-ratio
beta 0 -0.48554043E+03 0.99999979E+00 -0.48554053E+03
beta 1 -0.62427943E+03 0.99999995E+00 -0.62427947E+03
beta 2 0.60712421E+03 0.99999997E+00 0.60712422E+03
beta 3 -0.31032376E+03 0.99999995E+00 -0.31032378E+03
beta 4 -0.16348745E+02 0.99999994E+00 -0.16348746E+02
sigma-squared 0.15214543E+07 0.10000000E+01 0.15214543E+07
gamma 0.99999999E+00 0.88042276E-01 0.11358180E+02
mu is restricted to be zero
eta is restricted to be zero
log likelihood function = -0.70590419E+02
LR test of the one-sided error = 0.41216346E+01
with number of restrictions = 1
还请楼主帮忙看看,LR是否通过检验,或者需要怎么修改,感谢感谢!