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From |
moleps <moleps2@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: AW: st: RE: Graphing time on the x axis |

Date |
Mon, 21 Dec 2009 21:50:32 +0100 |

To me there doesnt seem to be any difference between the sets, but doing the following explains why the graph looks as it does. However I do not understand how this comes about or how I can rectify it... . list x in 1/5 +----------+ | x | |----------| 1. | 00:00:00 | 2. | 00:00:18 | 3. | 00:00:30 | 4. | 00:00:36 | 5. | 00:01:06 | +----------+ . sort x . list x in 1/5 +----------+ | x | |----------| 1. | 05:10:24 | 2. | 05:10:30 | 3. | 05:10:36 | 4. | 05:10:42 | 5. | 05:10:48 | +----------+ M On 21. des. 2009, at 21.18, Martin Weiss wrote: > > <> > > How is your dataset different from the one I am playing with? > > > ******* > clear* > set obs 1000 > set seed 10234 > > gen x=(_n-1)*6000 > > format x %tc_HH:MM:SS > > gen mean_amp =rnormal() > gen meanp =rnormal() > > gen byte c7=(runiform()<.2)+1 > > compress > > tw (line mean_amp x if c7==1) /* > */ (line mean_amp x if c7==2) /* > */ (line meanp x if c7==1) /* > */ (line meanp x if c7==2) > ******* > > > HTH > Martin > > -----Original Message----- > From: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of moleps > Sent: Montag, 21. Dezember 2009 20:32 > To: statalist@hsphsun2.harvard.edu > Subject: Re: AW: st: RE: Graphing time on the x axis > > picture of the graph > > http://www.flickr.com/photos/45805518@N04/?saved=1 > > commands > > > > > > . format x %td_HH:MM:SS > > . list x in 1/5 > > +----------+ > | x | > |----------| > 1. | 00:00:00 | > 2. | 00:00:18 | > 3. | 00:00:30 | > 4. | 00:00:36 | > 5. | 00:01:06 | > +----------+ > . tw (line mean_amp x if c7==1) (line mean_amp x if c7==2) (line meanp x > if c7==1) (line meanp x >> if c7==2) > > Regards, > > M > > > > On 21. des. 2009, at 19.57, Martin Weiss wrote: > >> >> <> >> >> >> You should probably reproduce the problem with a dataset shipped with > Stata. >> Is the time variable numeric or string? >> >> >> >> HTH >> Martin >> >> >> -----Ursprüngliche Nachricht----- >> Von: owner-statalist@hsphsun2.harvard.edu >> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von moleps >> Gesendet: Montag, 21. Dezember 2009 19:48 >> An: statalist@hsphsun2.harvard.edu >> Betreff: Re: st: RE: Graphing time on the x axis >> >> Maybe I was unclear in my description of the graph, but i dont think it is > a >> scale or label question. The problem is that given the coordinates (00:00, >> 2.3) (05:36,1.9) (07:20,3.1) (18:58,2.9) they are not graphed in that > order; >> Instead I have (07:20,3.1) (18:58,2.9) (00:00, 2.3) (05:36,1.9) ... >> >> Regards >> >> M >> >> >> On 21. des. 2009, at 13.45, Nick Cox wrote: >> >>> Clearly you need to specify your own. >>> >>> A convenience tool is -mylabels- from SSC. You just need to specify the >> conversion from Stata's underlying scale, presumably milliseconds, to your >> desired scale, which may be hours (you don't say what you want instead). > See >> the help for more. >>> >>> Nick >>> n.j.cox@durham.ac.uk >>> >>> moleps islon >>> >>> I´ve created a variable, time, for two measurements that both have >>> been subtracted from the starting time of the measuerement so that the >>> two start out with time 00:00:00 and I have measurements every 10 >>> sec. However after doing a twoway plot the starting point is not >>> 00:00:00. Instead I have these tick marks and values along the x >>> axis:: 07:20--12:53--18:58--00:00--05:36.... Any ideas? >>> >>> >>> * >>> * 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/ > > > * > * 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/

**Follow-Ups**:**RE: AW: st: RE: Graphing time on the x axis***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**RE: AW: st: RE: Graphing time on the x axis***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**References**:**st: Graphing time on the x axis***From:*moleps islon <moleps2@gmail.com>

**st: RE: Graphing time on the x axis***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**Re: st: RE: Graphing time on the x axis***From:*moleps <moleps2@gmail.com>

**AW: st: RE: Graphing time on the x axis***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**Re: AW: st: RE: Graphing time on the x axis***From:*moleps <moleps2@gmail.com>

**RE: AW: st: RE: Graphing time on the x axis***From:*"Martin Weiss" <martin.weiss1@gmx.de>

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