frontier 结果解读

8484

收藏 2010-07-03

悬赏 10 个论坛币未解决

请高手帮忙解答一下，我的frontier的运行结果中，有这么一块：

iteration =    0  func evals =    20  llf =  0.25072649E+02
   0.48434733E+02-0.96928485E+00-0.66682107E+01 0.10427548E+01-0.99741354E-01
   0.11202236E+00 0.38590821E+00-0.98647673E-02-0.77109191E-01 0.42437932E-03
   0.10131173E+00 0.80000000E+00 0.00000000E+00 0.00000000E+00
gradient step
iteration =    5  func evals =    51  llf =  0.26617992E+02
   0.48431050E+02-0.98977820E+00-0.66808061E+01 0.10324374E+01-0.93594437E-01
   0.11048934E+00 0.38332527E+00-0.16148823E-01-0.69888758E-01-0.61949869E-03
   0.10520112E+00 0.80265766E+00 0.32078190E-02 0.81500377E-01
iteration = 10  func evals =    71  llf =  0.27440954E+02
   0.48417844E+02-0.10224053E+01-0.65764864E+01 0.98039060E+00-0.10289596E+00
   0.89205089E-01 0.40749321E+00-0.17526921E-01-0.63424142E-01-0.15326799E-02
   0.69461019E-01 0.74249741E+00-0.11497570E-01 0.13129173E+00
iteration = 15  func evals = 107  llf =  0.32854173E+02
   0.47616141E+02-0.28996330E+01-0.41864728E+01 0.10118342E+01 0.63023811E-01
   0.11789631E+00 0.18009453E+00-0.21853304E-01-0.64035090E-01 0.13541430E-02
   0.72311781E-01 0.81291688E+00-0.27168870E-01 0.15137453E+00
iteration = 20  func evals = 179  llf =  0.33495807E+02
   0.45324518E+02-0.28976731E+01-0.36873708E+01 0.92392549E+00 0.75726213E-01
   0.11254732E+00 0.14773394E+00-0.18643167E-01-0.59921200E-01 0.62516622E-03
   0.53475926E-01 0.73865643E+00 0.17641978E+00 0.14130644E+00
iteration = 25  func evals = 286  llf =  0.34342726E+02
   0.40617955E+02-0.21428247E+01-0.35915554E+01 0.75312645E+00 0.41643505E-01
   0.10111885E+00 0.15557021E+00-0.79975906E-02-0.57102972E-01-0.37462087E-03
   0.34632670E-01 0.63446827E+00 0.29646808E+00 0.14595945E+00
pt better than entering pt cannot be found
iteration = 26  func evals = 294  llf =  0.34342726E+02
   0.40617955E+02-0.21428247E+01-0.35915554E+01 0.75312645E+00 0.41643505E-01
   0.10111885E+00 0.15557021E+00-0.79975906E-02-0.57102972E-01-0.37462087E-03
   0.34632670E-01 0.63446827E+00 0.29646808E+00 0.14595945E+00

请问一下，这块是什么意思？有知道的能帮忙解释一下吗？非常感谢！！
还有就是，如何用frontier来做极大似然检验呢？我看到挺多文章都有用到这个，就不知道用这个软件怎麽实现，麻烦有知道的帮帮忙。期待解答ing

扫码加我拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

全部回复

sachemm

2010-7-21 07:33:00

中间这块大可不必理睬，重要的是看gamma值。在极大似然估计里头，gamma越大越好，一般在0.9以上效果就算比较理想了

扫码加我拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

Constance07

2010-7-26 23:26:08

谢谢哈，我还想请问下，最终结果会有一个
efficiency estimates for year    1 :

   firm          eff.-est.

   1          0.91175243E+00
   2          0.51451526E+00
   3          0.50992716E+00
   4          0.69021332E+00
   5          0.69605523E+00
   6          0.61714726E+00
   7          0.46111847E+00
   8          0.68065000E+00
   9          0.32885942E+00
   10          0.41208886E+00
   11          0.32216361E+00
   12          0.42095220E+00

mean eff. in year 1 =  0.54712027E+00

efficiency estimates for year    2 :

   firm          eff.-est.

   1          0.92311783E+00
   2          0.56298592E+00
   3          0.55864476E+00
   4          0.72569751E+00
   5          0.73100255E+00
   6          0.65881062E+00
   7          0.51212300E+00
   8          0.71699985E+00
   9          0.38239205E+00
   10          0.46471101E+00
   11          0.37565427E+00
   12          0.47333624E+00

mean eff. in year 2 =  0.59045630E+00

……
这个效率是指什么效率呢？是技术非效率ui吗？