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

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Producing e a two phase single-case graph |

Date |
Mon, 25 Mar 2013 15:47:48 +0000 |

To get what you want, try twoway connected out time if prepost == 0 || /// connected out time if prepost || /// line fitpre time || /// line fitpost time , /// xline(10.5) /// ylabel(1(1)4) /// xlabel(1(1)20, labsize(small)) /// legend(order(1 "Observed pre" 2 "Observed post" /// 3 "Fitted pre" 4 "Fitted post")) You show no code, so it is difficult to explain why it didn't work. At a guess, you added a -connect()- option at the end, but that wouldn't retrospectively alter a graph that has already gone to press, so to speak. You have to specify connecting at the time. Nick On Mon, Mar 25, 2013 at 3:39 PM, Dan Brossart <brossart@tamu.edu> wrote: > Joerg, > > Yes, that is exactly what I had in mind! Is there a way to add symbols to > each time point? I think the option connect does this but I can't get it to > work in your example. In any case, thanks for giving me a way forward! > > Dan > > > > On 3/24/2013 6:05 PM, Joerg Luedicke wrote: >> >> Do you have something like this in mind? >> >> *------------------------------ >> // Pre/post toy data >> clear >> set obs 20 >> gen prepost = 0 in 1/10 >> replace prepost = 1 in 11/20 >> gen time = _n >> gen out = 2+runiform() if prepost == 0 >> replace out = 3+runiform() if prepost >> >> // Fitted values >> reg out time if prepost == 0 >> predict fitpre if e(sample) >> reg out time if prepost >> predict fitpost if e(sample) >> >> // Plot >> line out time if prepost == 0 || /// >> line out time if prepost || /// >> line fitpre time || /// >> line fitpost time , /// >> xline(10.5) /// >> ylabel(1(1)4) /// >> xlabel(1(1)20, labsize(small)) /// >> legend(order(1 "Observed pre" 2 "Observed post" /// >> 3 "Fitted pre" 4 "Fitted post")) >> *------------------------------ >> >> Joerg >> >> >> On Sun, Mar 24, 2013 at 4:34 PM, Dan Brossart <brossart@tamu.edu> wrote: >>> >>> Dear All, >>> >>> I am trying to generate a graph for single-case data (20 time points >>> total) >>> where the baseline has 10 occasions of measurement and the treatment >>> phase >>> has 10 occasions of measurement. I need to be able to graph the baseline >>> and >>> treatment as a single graph with a vertical line separating the two >>> phases. >>> In each phase I need to have a line connecting each data point (but not >>> from >>> phase 1 to phase 2). I also need the ability to add a regression line to >>> each phase - each phase gets its own line, independent of the other phase >>> regression line. >>> >>> I've looked through Mitchell's "A Visual Guide to Stata Graphics" 3rd >>> Ed., >>> but there isn't an example like this and so far I haven't found anything >>> like this in the archives. My efforts to use twoway have so far failed to >>> produce anything close. Using twoway with xrescale and a by statement >>> gives >>> me two separate graphs and I really want to do this in a single graph. >>> Ideas? >>> * * 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/

**References**:**st: Producing e a two phase single-case graph***From:*Dan Brossart <brossart@tamu.edu>

**Re: st: Producing e a two phase single-case graph***From:*Joerg Luedicke <joerg.luedicke@gmail.com>

**Re: st: Producing e a two phase single-case graph***From:*Dan Brossart <brossart@tamu.edu>

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