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From |
Kit Baum <baum@bc.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: re: passing a scalar argument to an ML evaluator |

Date |
Sun, 14 Feb 2010 14:42:59 -0500 |

<> Laszlo asks: My example: I want to code up the estimation of a truncated lognormal model. The point of truncation should be a simple scalar my evaluator uses. But how do I need to define that in my -ml model-, and how can use it in the evaluator ado? No need to pass anything, as currently defined scalars are visible to all programs: program drop _all program mynormal_lf_scalar version 11 args lnf mu sigma quietly replace `lnf' = /// myscalar * ln(normalden($ML_y1, `mu', `sigma' )) end sysuse auto, clear scalar myscalar = 1 ml model lf mynormal_lf_scalar /// (mpg = weight displacement) /sigma ml maximize scalar myscalar = 2 ml model lf mynormal_lf_scalar /// (mpg = weight displacement) /sigma ml maximize Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

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