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From |
"Glenn Goldsmith" <glenn.goldsmith@gmail.com> |

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

Subject |
RE: Re: Re: st: What wrong with this ML model command? |

Date |
Thu, 9 Apr 2009 23:47:51 +0100 |

Hi Quang, These two lines: > - replace `yb0' = ( `y_bo')^(`alpha') if `y_b0'>=0 > = replace __000014 = ( )^(__00000T) if __000018>=0 Tell you that the local macro `y_bo' in the first line is empty (hence the empty parentheses when the macro is evaluated in the second line). I assume you mean `y_b0' instead. As an aside, you could just code generate double `yb0' = (`y_b0')^(`alpha') if `y_b0'>=0 instead of generate double `yb0' = . replace `yb0' = (`y_b0')^(`alpha') if `y_b0'>=0 Same goes for `ya1'. HTH, Glenn. Quang Nguyen <quangn@gmail.com> wrote: Thanks Glenn and Maarten. I appreciate it. Here is part of the "trace" that contains the error: - generate double `yb0' = . = generate double __000014 = . - replace `yb0' = ( `y_bo')^(`alpha') if `y_b0'>=0 = replace __000014 = ( )^(__00000T) if __000018>=0 invalid syntax replace `yb1' = ( `y_b1')^(`alpha') if `y_b1'>=0 I double check the code and nothing seems wrong. Do you have any idea? * * 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/

**Follow-Ups**:**Re: Re: Re: st: What wrong with this ML model command?***From:*Quang Nguyen <quangn@gmail.com>

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