Median Direction
Sample median direction for a vector of circular data
## S3 method for class 'circular' median(x, na.rm = FALSE, ...)
The Definition in equations 2.32 & 2.33 from N.I. Fisher's 'Statistical Analysis of Circular Data', Cambridge Univ. Press 1993. is implemented.
Since version 0.4-4, the algorithm (not the definition) for the
calculation of the median is changed. For a measure of spread associated to the circular median use function meandeviation.
A scalar with the circular median value.
The median is returned as an object of class circular.
Claudio Agostinelli and Alessandro Gagliardi
N.I. Fisher (1993) Statistical Analysis of Circular Data, Cambridge University Press.
R.Y. Liu and K. Singh (1992) Ordering Directional Data: Concepts of Data Depth on Circles and Spheres, The Annals of Statistics, vol. 20, n. 3, 1468-1484.
# Compute the median direction of a random sample of observations. x <- circular(runif(50, circular(0), pi)) median(x) #only the median is returned meandeviation(x) #mean deviation is reported
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