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Re: st: Fill patterns in stata8 hbar graph


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Fill patterns in stata8 hbar graph
Date   Fri, 23 Sep 2005 19:38:05 -0400

Edward Tufte has also written extensively on the problems with "chart junk" that includes diagonal lines, cross-hatching and other fill patterns within bars. I find that gray scale works quite well with 4 or fewer levels to distinguish, but if you need more then you should probably think about using a different type of graphic to convey your data -- bar graphs are usually not very good ways to present complex information that requires multiple fill patterns.

Michael Blasnik
michael.blasnik@verizon.net

----- Original Message ----- From: "Eric G. Wruck" <ewruck@econalytics.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Friday, September 23, 2005 6:35 PM
Subject: Re: st: Fill patterns in stata8 hbar graph



Pas possible. I think Stata takes the work of Tukey (1977) "Exploratory Data Analysis", & William Cleveland's books, Visualizing Data (1993) & "The Elements of Graphing Data" (1994), as state-of-the-art. You will not find any fill patterns in Cleveland's books (at least that I can find). With a good printer, the various greys should be distinguishable on a graph. I would be interested in hearing what others have to say on this.

Eric


Neither menus nor manuals seem to describe how bar fill colors in a hbar graph can be replaced with patterns (such as diagonal lines, small squares, etc.) that are easy to distinguish from one another in a black and white setting. Any suggestions out there?
Thanks a lot!
--e

------------------------
Eric Magar
ITAM, Mexico City
===================================================

      Eric G. Wruck
      Econalytics
      2535 Sherwood Road
      Columbus, OH  43209
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