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From |
"Elkins, Zachary S" <zelkins@austin.utexas.edu> |

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

Subject |
st: treatment of missing values in a matrix dissimilarity score |

Date |
Mon, 15 Sep 2008 14:05:44 -0500 |

I'd like to calculate the matches between observations across a set of binary variables. I suspect that there are multiple ways to do this. I've specified: matrix dissimilarity m=x1 x2 x3 x4, match proportion However, some values in x1-x4 are missing. Based on the results, it appears that Stata treats missing values as if they were 1 and I don't see how to modify that. I'd like to calculate to calculate similarities across only non-missing elements (the number of which will be different for each pair, of course). Thanks for any help. Zach Elkins ______________________________ Zachary Elkins Assistant Professor Department of Government University of Texas at Austin 1 University Station A1800 Austin, TX 78712-0119 p: (512) 232-7250 f: (512) 471-1061 * * 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**:**st: RE: treatment of missing values in a matrix dissimilarity score***From:*"Verkuilen, Jay" <JVerkuilen@gc.cuny.edu>

**Re: st: treatment of missing values in a matrix dissimilarity score***From:*"Eva Poen" <eva.poen@gmail.com>

**st: RE: treatment of missing values in a matrix dissimilarity score***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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