Hello, I am quite new to R and although I have read some material (apparently not enough) I'm getting very frustrated. I'm trying to do some simple circular statistics in R (CircStats, primarily circ.mean) and I'm confused about the results. What is a negative radian or degree mean in R? I thought it would be a coterminal angle, but that doesn't make sense with my data points. I'm sorry if this is trivial to most of you, but I really appreciate any help.
I have tried to obtain the book this package was based on (Jammalamadaka and SenGupta 2001 Topics in Circular Statistics) but it is not available at any of my university libraries. Here is an example. The values of "x" are directions in degrees of one amphibian over 6 days and I'd just like to simply calculate the mean direction: > x <- c(5.009684,37.814266, 295.722970, 0.000000, 326.463366,242.678840) > radx <- rad(x) > circ.mean(radx) [1] -0.4283351 > deg(-0.4283351) [1] -24.54179 I would just like this number to be converted to the appropriate angle between 0-360 degrees. Can someone help me? Sincerely, Isabelle Deguise MSc candidate [[alternative HTML version deleted]] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.