From: Dan Bebber (firstname.lastname@example.org)
Date: Tue 18 May 2004 - 18:36:28 EST
I have circular data comprising direction and size for a number of
observations. I wish to calculate statistics such as the mean direction and
concentration for these data. I note that the CircStats package only deals
with angular data (i.e. "Each observation is treated as a unit vector or a
point on the unit circle". There appears to be no facility for weighting
observations by vector size.
My solution would be to create a data set of angles in which my observations
are repeated in proportion to the vector size, but this would lead to very
large data sets. Does anyone have a better solution to this problem?
Dr. Daniel P. Bebber
Department of Plant Sciences
University of Oxford
South Parks Road
Tel. 01865 275060
"Data, data, data!" he cried impatiently. "I can't make bricks without clay"
- Sherlock Holmes, The Adventure of the Copper Beeches, 1892
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