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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

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

Subject |
st: RE: Bivaraite versus univariate definition |

Date |
Tue, 10 Feb 2009 21:33:31 -0000 |

An analysis is bivariate if you need two variables to carry it out. It is univariate if you only need one variable to carry out. That does not stop you repeating such a method separately on several variables. Chi-square statistics can arise in univariate, bivariate and multivariate problems. There is no single thing uniquely called a chi-square test. There is no rule either way, but I'll assert from experience that using a real name increases your chances of getting good answers on this list. Nick n.j.cox@durham.ac.uk Anon Mouse I have a very basic statistics question. I have just started using stata, so thank you for your help. My question concerns the definition of bivariate versus univariate. When is one analysis considered bivariate, and when is another considered univariate? I have seen univariate describe tests involving 1 predictor and 1 output variable, but aI have also seen them described as basically descriptive statistics. I have seen bivaraite used to describe Chi2 tests. So what would I call logistic regression analysis involving only one predictor variable, e.g. high mpg (see example below)? Univariate, or bivariate analysis? What would I call Chi2 test? Univariate, or bivariate analysis? ***BEGIN EXAMPLE sysuse auto generate highmpg=1 if mpg>=20 replace highmpg=0 if mpg _________________________________________________________________ * * 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/

**References**:**st: Bivaraite versus univariate definition***From:*Anon Mouse <anon556656@live.ca>

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