deviation_norm: Normalize Angle Between Two Directions
Description
Normalizes the angle between two directions to the acute angle
in between, i.e. angles between 0 and 90\(^\circ\)
Usage
deviation_norm(x, y = NULL)
Value
numeric vector, acute angles between two directions, i.e. values
between 0 and 90\(^\circ\)
Arguments
x, y
Minuend and subtrahend. Both numeric vectors of angles in degrees.
If y is missing, it treats x as difference. If not, length of subtrahend
y is either 1 or equal to length(x).