Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
| From | Billy Schwartz <wkschwartz@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Table to count how many times an event occurs with another |
| Date | Thu, 4 Aug 2011 11:56:16 -0400 |
how about -xttrans-? It gives a transition probability table (like for a markov chain). That could show you how many times one value was followed by another. You'd just have to reshape your data long. On Thu, Aug 4, 2011 at 11:39 AM, Katia Bobulova <katia.bobulova@googlemail.com> wrote: > No unfortunately it is not what I want. > > I am just trying to have a table showing how many times a dummy is > released contemporaneously to each other dummy for each interval time > through my sample. > > Thank you very much anyway. > > Katia > > > 2011/8/4 MacLennan, Graeme <g.maclennan@abdn.ac.uk>: >> 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/ >> > > * > * 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/