The circular() function sets the details of your circular data. Mathematicians think in terms of radians that begin at 3 o'clock and proceed counterclockwise which I believe is the default. Geographers think in terms of degrees that begin at 12 o'clock and proceed clockwise. Unless you get all three attributes set correctly, things can get strange.
------------------------------------- David L Carlson Department of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: Jeff Reichman [mailto:reichm...@sbcglobal.net] Sent: Wednesday, March 16, 2016 11:33 AM To: David L Carlson Subject: RE: [R] Circular Statistic in R David Thank you for your comments. I am using the circular package and find my data words better when I convert to radians, but I'm lazy and don't like converting back and forth (radian - degrees); but find when I work in degrees my results are funky. So I just assumed R prefers radians as opposed to degrees. It could also be how I'm using the commands in R when dealing in degrees. I've just started using the circular package yesterday. Jeff -----Original Message----- From: David L Carlson [mailto:dcarl...@tamu.edu] Sent: Wednesday, March 16, 2016 9:01 AM To: reichm...@sbcglobal.net Subject: RE: [R] Circular Statistic in R It is always hard to diagnose unspecified "problems", but it should not matter. You do need to use statistical methods specifically designed for circular data. Even simple descriptive statistics such as the mean, standard deviation, and variance require special functions. Try package circular. ------------------------------------- David L Carlson Department of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Jeff Reichman Sent: Tuesday, March 15, 2016 6:14 PM To: r-help@r-project.org Subject: [R] Circular Statistic in R R-Help Is it preferable to work in Radians or Degrees when performing circular statistics. I'm assuming radians because I'm running into problems in Degrees. Jeff [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
