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From |
Laura Yu <Laura.Yu@fcc.gov> |

To |
"statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |

Subject |
st: error when attempting to calculate scores |

Date |
Fri, 19 Apr 2013 15:53:18 +0000 |

Dear Statalisters, I need to calculate the scores for two of the three equations of my model (the parameter of the third equation is constrained). I've tried both "ml score scores_*, missing" and "predict double score1 score2 score3, scores". For both I get the same error message: Mopt_score(): 3200 conformability error <istmt>: -function returned error r(3200); This might be caused by missing values in the predicted index (--predict indexx, xb - works) but the missing option might take care of that. Does anyone know how to find the scores? Thanks in advance for all your help! -Laura The program is below: program orbitdo version 11.2 syntax varlist [if] [in] [, cluster] gettoken y xb: varlist args lnf beta lnsigma lambda local y "$ML_y1" tempvar sigma lnfi bos lmbos diffnorm scalar `sigma' = exp(`lnsigma') qui gen double `bos' = -`beta'/`sigma' qui gen double `lmbos' = (`lambda' -`beta')/`sigma' qui gen double `diffnorm' = normal(`lmbos') - normal(`bos') qui replace `diffnorm' = ln(1e-19) if `diffnorm' < 1e-19 qui gen double `lnfi' = 0 quietly replace `lnfi'= lnnormal(`bos') if `y'== 0 quietly replace `lnfi'= ln(`diffnorm') if `y'> 0 & `y' <= t quietly replace `lnfi' = lnnormal(-`lmbos') if `y' > t quietly replace `lnf' = `lnfi' end program orbit syntax varlist [if] [in] [, cluster] gettoken y xb: varlist scalar sval = 41 scalar t = 40 constraint 1 [lam]_cons = sval ml model lf orbitdo (pay: `y' = `xb') (lnsig: ) (lam:) , constraint(1) ml maximize ml score scores_*, missing //this is the culprit predict xbest, xb constraint 2 [pay]xbest = 1 constraint 3 [pay]_cons = 0 ml model lf orbitdo (pay: WTP = xbest) (lnsig: ) (lam:), constraint(2-3) ml init /lam:_cons = 30 end * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

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