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From |
Ernest Berkhout <ernestb@seo.fee.uva.nl> |

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

Subject |
Re: st: Pie Graph Question |

Date |
Thu, 01 Apr 2004 11:03:43 +0200 |

At 20:02 31/03/2004, Josip Dasovic wrote:

Josip,Hello Statalisters: Despite a rather exhaustive search, I am stumped and am hoping that a list member (or three) will come to the rescue regarding a question I have about the graph_pie command in Stata. I have created a series of pie graphs, for which the slices denote relative proportions of various ethnic groups within a village (52 villages in all, necessitating 52 pie graphs--all on one page). This I have managed to accomplish easily. I would then like to adjust the size (i.e. diameter) of each pie to reflect the level of inter-ethnic violence in each village (the values for which are contained in a separate variable--let's call it "violence"). First of all, how can I adjust the size of the pie graphs, and secondly, can I use the values of the "violence" variable to adjust the pie graph sizes accordingl?

I don't think that pie graphs are the right instrument for this. In pie graphs, one merely shows relative shares of categories, thereby disregarding the absolute sizes of the all-categories-total. If the latter is important, it's better to use stacked bars. Exactly similar to using pies is using a stacked bar of ethnic groups that always sums up to 100%. But what you want are stacked bars that stack the absolute figures of (relative size of ethnic groups) * (total size of violence) for each village.

Ernest Berkhout

SEO Amsterdam Economics

University of Amsterdam

Room 3.08

Roetersstraat 29

1018 WB Amsterdam

The Netherlands

tel.:+ 31 20 525 1657

fax:+ 31 20 525 1686

http://www.seo.nl

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