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

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

Subject |
st: RE: RE: RE: tabulating frequency records |

Date |
Thu, 10 Jul 2003 17:25:25 +0100 |

Cornelia Zekweld > > -------------------------------------------------------------- > > | agecat > > AgentName | 16-39 40-64 65+ > > -----------------------------------------+-------------------- > > A........ | 1 2 . > > C....... | 9,999 1 . > > C..... | . 1 9,999 > > I............ | . 9,999 . > > N..... | 1 9,999 . > > O........... | 1 2 9,999 > > -------------------------------------------------------------- > > > > I will have a look at the tabcount command - thanks. > > The reason why the avg. freq. <0.5 is that it is annual > averages where e.g., > over a period of 5 years there are only 2 occurrences of > the disease and so > dividing this by 5 gives you 0.4 per year - which then is > rounded to zero. > > This causes another problem in that if I add col or row to > get totals by > age-group, the zero's of course do not add anything to the > totals (where > actually it was 0.4). Having say 3 such entries, the > overall total should > increase by 1.2 (rounded to 1), but now I lose this. > > I have an immense number of tables to produce, otherwise I > could have worked > out the annual average totals from the period-specific totals. Sorry, I didn't make myself clear. I understand how averages < 0.5 arise. What I said was that I didn't know what such averages _entailed_ for -table-. In fact, I am not aware that they entail anything for -table-. -table- won't accept frequency weights which are not integers, so I still don't understand what you are doing with -table-. Perhaps someone else does. 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/

**Follow-Ups**:**st: Populating User Menu***From:*"Kostas Alexandridis" <alexa191@msu.edu>

**References**:**st: RE: RE: tabulating frequency records***From:*"Zekveld, Cornelia" <c.zekveld@imperial.ac.uk>

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