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From |
Friedrich Huebler <fhuebler@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: AW: Gap between lines in dot plot |

Date |
Tue, 3 Nov 2009 23:30:29 -0500 |

Thank you, Vince. With your example I can indeed get the effect I had been looking for. . graph dot mpg turn, over(rep78) outergap(150) Friedrich On Tue, Nov 3, 2009 at 1:22 PM, Vince Wiggins, StataCorp <vwiggins@stata.com> wrote: > Friedrich Huebler <fhuebler@gmail.com> asks, > >> How can the lines in a dot plot with over() be moved closer >> together? The gap() option has no effect. >> >> . sysuse auto >> . graph dot mpg turn, over(rep78) name(dot1) >> . graph dot mpg turn, over(rep78, gap(*.5)) name(dot2) >> >> I expected the lines in the second graph to be closer together but >> both graphs look the same. > > I have found that illustrating this question is way beyond my > abilities as an ASCII artist. So, if you are interested, I > suggest you open Stata and then draw the graphs that follow. > > Friedrich is right, there is no difference in these two graphs. > > . sysuse auto > . graph dot mpg turn, over(rep78) > . graph dot mpg turn, over(rep78, gap(*.5)) > ^^^^^^^^ > > This is subtle and technical, but what it comes down to is that > there are no "gaps" in the first graph. There is just an axis > with the values of -rep78- evenly spaced. > > This graph, however does have a gap, > > . graph dot mpg turn, over(rep78) over(foreign) > > The gap is not between the values of rep78. Those are, again, > just evenly spaced values on an axis. The two rep78 axes > (determined by the two values of foreign) do, however, have a > gap between them. So, > > . graph dot mpg turn, over(rep78) over(foreign, gap(*.1)) > ^^^^^^^^ > > does have an effect. > > In Friedrich's original graph, the axis wants to take up all of > the space on the graph. If Friedrich want to scrunch the lines > together in the middle, he can specify an outer gap, e.g., > > . graph dot mpg turn, over(rep78) outergap(150) > > I have asked Friedrich privately if this is the effect he seeks. > > I am hoping that this question relates to a graph for > Friedrich's blog. If you are interested in some effective use > of graphics, and in particular Stata graphics, take a look at, > > http://huebler.blogspot.com/ > > Which is not to imply that the content isn't interesting too. > > > -- Vince > vwiggins@stata.com * * 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/

**References**:**Re: st: AW: Gap between lines in dot plot***From:*vwiggins@stata.com (Vince Wiggins, StataCorp)

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