python在使用坐标计算2个地方之间的距离时出现ValueError

如何解决python在使用坐标计算2个地方之间的距离时出现ValueError

我有一个 500 行的 df，列 id、name、latitude1、longitude1、latitude2、longitude2。 该表填充有工作地点值（lat1 和 long1）和家庭地址值（lat2 和 long2）的坐标。我创建了一个新列（“dist”），并想计算表中每个人的工作地点和家之间的距离。

我试过 geopy.distance.distance() 和 geopy.distance.geodesic() - 这给了我一个错误：

ValueError: The truth value of a Series is ambiguous. Use a.empty,a.bool(),a.item(),a.any() or a.all().

当我添加 .all() 时，它对代码没有帮助。

我也尝试使用 hs.haversine 但它返回了另一个错误：TypeError: cannot convert the series to <class 'float'>

我错过了什么？

代码：

home_lat = vv.user_home_lat
home_long = vv.user_home_long
home_add = (home_lat,home_long)

vanue_lat = vv.visit_lat
vanue_long = vv.visit_long
vanue_add = (vanue_lat,vanue_long)

# hs.haversine(home_add,vanue_add)

# vv['distance_home_vanue'] = geopy.distance.distance((home_lat,home_long),(vanue_lat,vanue_long)).miles

distance_home_vanue = geodesic(home_add,vanue_add).miles

完整的错误堆栈回溯：

--------------------------------------------------------------------------- ValueError                                Traceback (most recent call last) <ipython-input-187-072ccb994de5> in <module>
     11 # vv['distance_home_vanue'] = geopy.distance.distance((home_lat,vanue_long)).miles
     12 
---> 13 distance_home_vanue = geodesic(home_add,vanue_add).miles

~\anaconda3\lib\site-packages\geopy\distance.py in __init__(self,*args,**kwargs)
    414         self.set_ellipsoid(kwargs.pop('ellipsoid','WGS-84'))
    415         major,minor,f = self.ELLIPSOID
--> 416         super().__init__(*args,**kwargs)
    417 
    418     def set_ellipsoid(self,ellipsoid):

~\anaconda3\lib\site-packages\geopy\distance.py in __init__(self,**kwargs)
    198         elif len(args) > 1:
    199             for a,b in util.pairwise(args):
--> 200                 kilometers += self.measure(a,b)
    201 
    202         kilometers += units.kilometers(**kwargs)

~\anaconda3\lib\site-packages\geopy\distance.py in measure(self,a,b)
    434     # Call geographiclib routines for measure and destination
    435     def measure(self,b):
--> 436         a,b = Point(a),Point(b)
    437         _ensure_same_altitude(a,b)
    438         lat1,lon1 = a.latitude,a.longitude

~\anaconda3\lib\site-packages\geopy\point.py in __new__(cls,latitude,longitude,altitude)
    173                     )
    174                 else:
--> 175                     return cls.from_sequence(seq)
    176 
    177         if single_arg:

~\anaconda3\lib\site-packages\geopy\point.py in from_sequence(cls,seq)
    470             raise ValueError('When creating a Point from sequence,it '
    471                              'must not have more than 3 items.')
--> 472         return cls(*args)
    473 
    474     @classmethod

~\anaconda3\lib\site-packages\geopy\point.py in __new__(cls,altitude)
    186 
    187         latitude,altitude = \
--> 188             _normalize_coordinates(latitude,altitude)
    189 
    190         self = super().__new__(cls)

~\anaconda3\lib\site-packages\geopy\point.py in
_normalize_coordinates(latitude,altitude)
     55 
     56 def _normalize_coordinates(latitude,altitude):
---> 57     latitude = float(latitude or 0.0)
     58     longitude = float(longitude or 0.0)
     59     altitude = float(altitude or 0.0)

~\anaconda3\lib\site-packages\pandas\core\generic.py in
__nonzero__(self)    1325     def __nonzero__(self):    1326         raise ValueError(
-> 1327             f"The truth value of a {type(self).__name__} is ambiguous. "    1328             "Use a.empty,a.any() or a.all()."    1329         )

ValueError: The truth value of a Series is ambiguous. Use a.empty,a.any() or a.all().

解决方法

尝试使用 Dataframes apply 方法：

from geopy import distance

distances = vv.apply(
    lambda row: distance.distance(
        (row['user_home_lat'],row['user_home_long']),(row['visit_lat'],row['visit_long'])
    ),axis=1
)