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From |
"Thomas Jacobs" <thomasjacobs@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: RE: Basic Matrix Definition Question |

Date |
Mon, 15 Oct 2007 13:23:04 -0500 |

Thanks Daniel, that was the problem. It works with local macros. Tom On 10/15/07, Daniel Waxman <dan@amplecat.com> wrote: > I'm no matrix expert, but there is a logical problem here. > > You define x and y as variables and they can take on a different value for > each observation (although you are giving them the same value for each > observation in your example). > > so it is unclear which values of x and y your matrix command would use. > > . display x > > Gives you the value of x in the first observation (although it is unclear to > me why Stata lets you do this). > > Perhaps what you need are local macros? > > . local x 1 > . local y 1 > . matrix byvar = (`x',`y') > > > Daniel > > > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.5.488 / Virus Database: 269.14.11/1071 - Release Date: 10/15/2007 > 6:48 AM > > > * > * 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/ > -- Thomas Jacobs * * 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: Basic Matrix Definition Question***From:*"Thomas Jacobs" <thomasjacobs@gmail.com>

**st: RE: Basic Matrix Definition Question***From:*"Daniel Waxman" <dan@amplecat.com>

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