def __init__(self, theta=None, phi=None, r=None):
        
        self.theta = phi
        """
        Latitude. 1-D array.
        """
        self.phi = phi
        """
        Longitude. 1-D array.
        """
        self.r = r
        """
        Magnitude or radius. 2-D array.
        """
Returns the closest sibling to this Tag that matches the
dataset/ETHPy150Open python-acoustics/python-acoustics/acoustics/directivity.py/Custom.__init__--crossover with--dataset/ETHPy150Open mtlevolio/pylinkchecker/pylinkchecker/bs4/element.py/PageElement.find_previous_sibling