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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Database problem |

Date |
Fri, 7 Dec 2012 19:28:06 +0000 |

Punctuation was awry there: If I understand this correctly, I would change the structure of the data so that you have (in -reshape- terms) a -long- not -wide- structure. On Fri, Dec 7, 2012 at 7:22 PM, Nick Cox <njcoxstata@gmail.com> wrote: > If I understand this correctly, I would change the structure of the > data so that you have (in -reshape- terms, a -long- not -wide- > structure). > > Even after reversal, this is going to be very awkward to work with, so > it's better to think of another solution. > > You probably have some -rename-ing to do first. > > Nick > > On Fri, Dec 7, 2012 at 7:16 PM, roland andersson <rolandersson@gmail.com> wrote: >> I have data on 3574 unique patients. In the datase there are first 5 >> identification variables ,age, sex and so on. Thereafter comes a >> nomber of variables representing observations. Each observation has >> three columns - the sequential number of the observation, the content >> of the observation and the date. The problem is that these observation >> are in reverse order, ie the last observation comes first and the >> first observation last in the row. And the number of observations for >> each patient range from 1 to 44. Some observations have the same date >> so they have the same sequential number. below is the data. Var 7, var >> 10 and var 13 are the number of the observation, var 8, 11, and 14 the >> observation (the diagnosis or intervention) and var 9, 12 and 15 the >> date of the observation. >> >> I want to reverse the order so that the first observation comes in as >> var 7 etc. I also want to merge observations with the same date with a >> new combined content. case nr 1 below sholuld thus be 1 >> diverticulitsigmo 15930. Is this possible? >> >> Regards >> Roland Andersson >> >> var7 var8 var9 var10 var11 var12 var13 var14 var15 >> 1 diverticulit 15930 1 sigmo 15930 >> 1 akutiverticulit 16670 1 sigmo 16670 >> 3 akutiverticulit 17126 2 akutiverticulit 16962 1 akutiverticulit 16359 >> 2 akutiverticulit 17019 1 akutiverticulit 17019 >> 1 akutiverticulit 15831 1 resektion 15831 >> 1 akutiverticulit 16129 >> 3 ctbuk 16839 2 sigmo 16838 1 akutiverticulit 16532 >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/faqs/resources/statalist-faq/ >> * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Database problem***From:*roland andersson <rolandersson@gmail.com>

**References**:**st: Database problem***From:*roland andersson <rolandersson@gmail.com>

**Re: st: Database problem***From:*Nick Cox <njcoxstata@gmail.com>

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