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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: RE: graph the percent missing fairly efficiently (forget the pie) |

Date |
Fri, 15 Nov 2002 18:33:00 -0000 |

adonlan > > Thank you for the responses, which were very useful. > Forgive me for moving to > a variant question. > > What would be the simplest way to create a graph in > which the x-axis is the > name of many variables (from 10 to 100; but that is a > visual question), and > the y asix is the percent of the observations that are > missing. One aspect of > the question (as in the prior form of the question) is how > to limit the degree > of changing the data (recoding), although it may necessary. > The other aspect > is how to graph the percent missing. > Sorry, I think that way lies frustration only. Consider the results of . u auto . sort make . graph mpg in 1/50, by(make) bar noting that with this form you can _only_ have 50 bars, but that is not the main problem. The main problem is that the labels are completely unreadable, and this remains true unless you were to truncate the labels (in your case it would be the variable names) to say 2 characters each, and a lot of help that would be. Of course, this is also an indictment of Stata, which understandably and admirably refuses to produce giraffe graphics in which you have twist your neck 90 degrees to read vertical text beneath a horizontal axis. This example is of a bar chart, but I believe that you would have exactly the same problem with any other graph of the form you sketch. Previous postings by Richard Goldstein and myself indicate that there is no need to do any recoding of the data to tackle this question. And this is why I recommended the form of the graph I used earlier, although it would still be difficult to read with ~ 100 variables. Nick n.j.cox@durham.ac.uk * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**st: from variable to macro***From:*Shige Song <sgsong@ucla.edu>

**References**:**st: RE: graph the percent missing fairly efficiently (forget the pie)***From:*adonlan <adonlan@gwu.edu>

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