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From |
"MacLennan, Graeme" <g.maclennan@abdn.ac.uk> |

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

Subject |
RE: st: Table to count how many times an event occurs with another |

Date |
Thu, 4 Aug 2011 16:29:34 +0100 |

If you have only four dummies then: *** example begin*** gen d1d2d3d4 = D1*1000 + D2*100 + D3*10 + D4 tab d1d2d3d4 *** example end*** Might do what you want? Graeme ******** This is an example of my databse: Date Time D1 D2 D3 D4 01/01/2008 8:00 1 0 0 1 01/01/2008 9:00 0 0 0 0 01/01/2008 10:00 0 1 1 0 ..... ....... . . . . For every day I have something similar to the above example with dummy variables. In the fist row (8:30) I have that two dummies happen at the same time and also in the last row (10:00). I want to construct a table, in which I have the number of times ( for each interval throughout my whole sample) I have that events D1 and D4 happen together and D2 and D3 happen together and so on for all possible combinations. Thanks, Katia 2011/8/4 Anders Alexandersson <andersalex@gmail.com>: > Please provide the original example data of the 4 events and 10 > observations from which you want to create the table. > The reason I ask is that I do not understand your provided 4*4 table. > > Anders Alexandersson > andersalex@gmail.com > > On Thu, Aug 4, 2011 at 10:08 AM, Katia Bobulova > <katia.bobulova@googlemail.com> wrote: >> Because it doesn't do what I want and anyway it is not possible to >> use tabulate with more than two variables. >> >> Katia >> >> 2011/8/4 Nick Cox <njcoxstata@gmail.com>: >>> Why not -tabulate-? >>> >>> Nick >>> >>> On 4 Aug 2011, at 10:52, Katia Bobulova >>> <katia.bobulova@googlemail.com> >>> wrote: >>> >>>> Dear All, >>>> >>>> I have many events in my dataset and I want to count how many times >>>> one event happens with another one. >>>> >>>> Assuming fro example 4 events and ten observations, I would like to >>>> have a table like this: >>>> >>>> x1 x2 x3 x4 >>>> x1 10 2 1 3 >>>> x2 1 10 0 0 >>>> x3 0 3 10 1 >>>> x4 2 5 0 10 >>>> >>>> Could you please help me? > > * > * 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/ > * * 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/ The University of Aberdeen is a charity registered in Scotland, No SC013683. * * 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**:**Re: st: Table to count how many times an event occurs with another***From:*Katia Bobulova <katia.bobulova@googlemail.com>

**References**:**st: Table to count how many times an event occurs with another***From:*Katia Bobulova <katia.bobulova@googlemail.com>

**Re: st: Table to count how many times an event occurs with another***From:*Nick Cox <njcoxstata@gmail.com>

**Re: st: Table to count how many times an event occurs with another***From:*Katia Bobulova <katia.bobulova@googlemail.com>

**Re: st: Table to count how many times an event occurs with another***From:*Anders Alexandersson <andersalex@gmail.com>

**Re: st: Table to count how many times an event occurs with another***From:*Katia Bobulova <katia.bobulova@googlemail.com>

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