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From |
"Scott Merryman" <scott.merryman@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: predict observed yhat and not latent yhat after bitobit |

Date |
Thu, 3 Apr 2008 07:58:27 -0500 |

Since -bitobit- is a user written command you should try contacting the author as he may not be a member of Statalist. At least the -tobit- model you can calculate the other predicted values (pr(a,b), e(a,b), ystar(a,b) ) from the fitted values For example: sysuse auto,clear tobit mpg gear, ll(17) predict p, pr(17,.) predict e, e(17,.) predict yst, yst(17,.) predict yhat,xb local l ((17-yhat)/_b[/sigma]) gen my_p = normprob(-(17-yhat)/_b[/sigma]) gen my_e = yhat + _b[/sigma]*normalden(`l')/normal(-`l') gen my_yst = my_p*my_e + (1-my_p)*17 sum p my_p e my_e yst my_yst Scott On Thu, Apr 3, 2008 at 3:06 AM, Kidist Gebreselasie <wawuye@yahoo.com> wrote: > Dear statalisters, > would you please help me out with a stata command to > predict observed y (yhat) and not latent y (y*hat) > after a bitobit. The 'predict yhat, equation()' > command seems to predict y*hat as it produces -,+ and > 0 predicted values. I am interested in predicting the > observed yhat which I thought should take only > non-negative predicted values. I appreciate any > suggestions. > * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: predict observed yhat and not latent yhat after bitobit***From:*Kidist Gebreselasie <wawuye@yahoo.com>

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