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

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Re: Make xline on top of graph? |

Date |
Thu, 21 Jul 2011 13:43:33 -0500 |

Let's suppose you want lines at x = 1000, 2000, 4000. Superimpose on top of your -twoway- graph call || scatteri 0 1000 1 1000 , recast(line) || scatteri 0 2000 1 2000 , recast(line) || scatteri 0 4000 1 4000 , recast(line) You will want to tweak widths, colours, etc. as well. In many fields triangular plots (many alternative names exist) are used for such data. -triplot- from SSC is a Stata implementation. An easy alternative is to plot (var2 - var1) versus var3 which preserves the information in the three variables. For example, U.S. elections can be plotted in terms of (Republican vote - Democrat vote) vs sum of independent votes which is not too difficult to think about. Even if the x variable is a nonsense dimension, it spreads out the data. I reviewed some possibilities in this field at the 2008 London users' meeting. http://www.stata.com/meeting/uk08/abstracts.html Nick On Thu, Jul 21, 2011 at 11:39 AM, Paul Burkander <paul@burkander.com> wrote: > Here's my situation: I have about 5,000 observations and three key > variables, I'll call them var1 var2 and var3. Each is between 0 and > one and the sum of the three variables is one. > > I'd like to have a graph that's sort of like a stacked bar chart to > show the relative proportions of each variable across the 5000 > observations. I've succeeded in doing this by using the twoway bar > option. I sort on var1, then graph var1+var2+var3, then var1+var2, > then var1. That part seems to have worked out fine. > > However, the 5000 observations fall into three distinct categories, > and I'd like to first sort by these categories then by var1. I'd like > it to be clear where the demarcation between categories is. I tried > xline, but it seems to be drawn first, so that my bars are drawn over > top if it and it can only be seen below 0 and above 1. I don't see > any option to make it be drawn on top. > > I also tried "graph combine," but there's a large difference in the > number of observations in each category, and each of my separate > graphs was being drawn with the same width, so the graph was > misleading. * * 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: Re: Make xline on top of graph?***From:*Paul Burkander <paul@burkander.com>

**References**:**st: Re: Make xline on top of graph?***From:*Paul Burkander <paul@burkander.com>

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