Eloisa.I.Ruiz at gsk.com wrote:
> Hi Brian
>> I was looking through some references online and found the question you
> posed about Circular Data.
>> Have you a book reference or any links you can send on? We would greatly
> appreciate your help.
The classical reference is the book "Circular Statistics" by the late
Eduard Batschelet (Zürich), but unfortunately it is out of print. Your
library should have a copy, though.
Alternatively, you can use "Statistical analysis of circular data" by
N.I. Fischer (Cambridge 1993) which is useful and concise, but I really
understood it only after reading the Batschelet.