Re: Circular statistics

Posted by Gerhard-5 on Oct 25, 2006; 3:14pm
URL: http://imagej.273.s1.nabble.com/Circular-statistics-tp3701200p3701202.html

Michael Doube wrote:

> Dear list,
>
> I've been measuring the orientations of marrow spaces in images of
> bone samples from exercised and non-exercised horses, using Analyze
> Particles.
>
> Which software tools do people use to analyse circular data like these
> angles? A quick look on Wikipedia indicates that tests based on
> assuming a Normal distribution are not valid for circular data, and it
> appears that SPSS v. 11.0.0 has no circular statistical ability. Is it
> time to grow up and use SAS??
>
> All comments welcome,
>
> Mike
>

You can try R
http://www.r-project.org/
its a very powerful tool for Statistical Computing and is free

It has an module for circular statistics see
http://seldon.it.northwestern.edu/sscc/R/library/circular/html/00Index.html