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st: -circular- package updated on SSC

From   "Nick Cox" <>
To   <>
Subject   st: -circular- package updated on SSC
Date   Fri, 7 May 2004 19:03:42 +0100

Thanks to Kit Baum, the -circular- package on SSC 
has been updated. This package for circular statistics
(for variables measured on the circle as outcome space, 
such as compass directions, times of day, etc.) requires 
Stata 8. -circular- now supersedes the rather old 
-circstat-, except that copies of -circstat- will remain 
accessible for anybody interested who is using Stata 7 
or earlier. A lot has been added to this package, 
even since I gave a talk in Berlin about it a month 
ago, and other developments will also appear soon. 

(For all that not many Stata users appear interested 
in circular statistics, this is its author's favourite 

The package description obtained by 

. ssc desc circular 

is fairly terse, partly because the package 
is centred on a helpfile circular.hlp. That is 

. help circular 

or better 

. whelp circular 

fires up an introduction with links to the 
individual help files in the package (and 
indeed beyond it). 

A tip which is more general is that a 
command like 

. ssc type circular.hlp 

can be executed without installing the 
package (so long as, naturally, you have
an up-to-date net-aware Stata). This 
tip has other applications, such as 
comparing .ado files on SSC with those
elsewhere. So 

. ssc type venndiag.ado 

for example would let you peek at a file (the opening lines giving 
a version and a date are usually crucial here). 

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