def get_radius(self):
        """!
        @brief Calculates radius of cluster that is represented by the entry.
        @details It's calculated once when it's requested after the last changes.
        
        @return (double) Radius of cluster that is represented by the entry.
        
        """
        
        if (self.__radius is not None):
            return self.__radius;
        
        centroid = self.get_centroid();
        
        radius_part_1 = self.square_sum;
        
        radius_part_2 = 0.0;
        radius_part_3 = 0.0;
        
        if (type(centroid) == list):
            radius_part_2 = 2.0 * sum(list_math_multiplication(self.linear_sum, centroid));
            radius_part_3 = self.number_points * sum(list_math_multiplication(centroid, centroid));
        else:
            radius_part_2 = 2.0 * self.linear_sum * centroid;
            radius_part_3 = self.number_points * centroid * centroid;
        
        self.__radius = ( (1.0 / self.number_points) * (radius_part_1 - radius_part_2 + radius_part_3) ) ** 0.5;
        return self.__radius;
def get_radius(self):
        """!
        @brief Calculates radius of cluster that is represented by the entry.
        @details It's calculated once when it's requested after the last changes.
        
        @return (double) Radius of cluster that is represented by the entry.
        
        """
        
        if (self.__radius is not None):
            return self.__radius;
        
        centroid = self.get_centroid();
        
        radius_part_1 = self.square_sum;
        
        radius_part_2 = 0.0;
        radius_part_3 = 0.0;
        
        if (type(centroid) == list):
            radius_part_2 = 2.0 * sum(list_math_multiplication(self.linear_sum, centroid));
            radius_part_3 = self.number_points * sum(list_math_multiplication(centroid, centroid));
        else:
            radius_part_2 = 2.0 * self.linear_sum * centroid;
            radius_part_3 = self.number_points * centroid * centroid;
        
        self.__radius = ( (1.0 / self.number_points) * (radius_part_1 - radius_part_2 + radius_part_3) ) ** 0.5;
        return self.__radius;
def get_radius ( self ) : if ( self . __radius is not None ) : return self . __radius centroid = self . get_centroid ( ) radius_part_1 = self . square_sum radius_part_2 = 0.0 radius_part_3 = 0.0 if ( type ( centroid ) == list ) : radius_part_2 = 2.0 * sum ( list_math_multiplication ( self . linear_sum , centroid ) ) radius_part_3 = self . number_points * sum ( list_math_multiplication ( centroid , centroid ) ) else : radius_part_2 = 2.0 * self . linear_sum * centroid radius_part_3 = self . number_points * centroid * centroid self . __radius = ( ( 1.0 / self . number_points ) * ( radius_part_1 - radius_part_2 + radius_part_3 ) ) ** 0.5 return self . __radius
!
        @brief Calculates radius of cluster that is represented by the entry.
        @details It's calculated once when it's requested after the last changes.
        
        @return (double) Radius of cluster that is represented by the entry.
!