getVectorAngle: Gets an angle
Description
Uses a vector to get an angle by atan2.
Usage
getVectorAngle(x, y, x_origo = NA, y_origo = NA)
Arguments
x
The x point of the vector
y
The y point of the vector
x_origo
The x origin if other than 0
y_origo
The y origin if other than 0
Value
angle in radians (see atan2)