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From |
"Li, Wenjun" <WLi1@Lifespan.org> |

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

Subject |
st: RE: RE: A simple but really hard question |

Date |
Wed, 30 Oct 2002 16:43:35 -0500 |

Thanks, everyone. A friend has suggested to use "double-octiles" for quantiles based on division into 16 groups of equal frequency. How do you think about this? "Sedeciles", as suggested by Nick Cox, is a possible name too. Wenjun Li Biostatistics Research Center Tufts-New England Medical Center 750 Washington Street, #63 Boston, MA 02111 Tel (617) 636 1603 Fax (617) 636 5560 Email: wli1@lifespan.org <mailto:wli1@lifespan.org> -----Original Message----- From: Nick Cox [mailto:n.j.cox@durham.ac.uk] Sent: Wednesday, October 30, 2002 4:31 PM To: statalist@hsphsun2.harvard.edu Subject: st: RE: A simple but really hard question Li, Wenjun > > I am trying to find the name of quintiles. When the > population was divided > into four groups according to its distribution, we call > them quartiles; when > divided into equally eight groups, we call them octiles; > when divided into > 16 groups, what is the name for these quantiles? > "quantiles" is the general name. "quintiles" would be associated with a division into 5 groups. All the words I have heard of for other particular cases use Latin roots. So what would it be? The Latin for 16 was "sedecim", so I suppose it would be "sedeciles". However, it wouldn't surprise me -- should you adopt this term -- if you were the first person ever to use it, and whenever you used it, you would have to explain it to almost everyone. So, I would stick with quantiles based on division into 16 groups of equal frequency, wordier but serviceable. Nick n.j.cox@durham.ac.uk * * 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/ * * 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/

**Follow-Ups**:**Re: st: RE: RE: A simple but really hard question***From:*Ronan Conroy <rconroy@rcsi.ie>

**st: RE: RE: RE: A simple but really hard question***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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