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#############################################################
# #
# angular.deviation function #
# Author: Claudio Agostinelli #
# Email: claudio@unive.it #
# Date: June, 24, 2011 #
# Copyright (C) 2011 Claudio Agostinelli #
# #
# Version 0.3 #
#############################################################
angular.deviation <- function (x, na.rm=FALSE) {
if (is.matrix(x)) {
apply(x, 2, angular.deviation, na.rm=na.rm)
} else {
if (na.rm)
x <- x[!is.na(x)]
x <- conversion.circular(x, units="radians", zero=0, rotation="counter")
attr(x, "class") <- attr(x, "circularp") <- NULL
AngularDeviationRad(x=x)
}
}
AngularDeviationRad <- function(x) {
rbar <- RhoCircularRad(x)
circvar <- sqrt(2*(1-rbar))
return(circvar)
}
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