我有panda dataframe
以下schema
:
customer_id int64
vehicle_type object
pickup_place object
place_category object
how_long_it_took_to_order object
pickup_lat float64
pickup_lon float64
dropoff_lat float64
dropoff_lon float64
pickup_coord object
dropoff_coord object
dtype: object
我试图找到拾取和放下位置之间的距离。所以我最初尝试通过hasrsine公式使用Getting distance between two points based on latitude/longitude方法。当我尝试使用
将度数转换为弧度时df_post['lat1'] = radians(df_post['pickup_lat'])
我收到了这个错误:
TypeError: cannot convert the series to <class 'float'>
所以我尝试在第3个回复中使用geopy.distance
模块使用内置函数,并为此创建了lat和long的元组。
df_post['pickup_coord']=list(zip(df_post['pickup_lat'],df_post['pickup_lon']))
df_post['dropoff_coord']=list(zip(df_post['dropoff_lat'],df_post['dropoff_lon'])
但是当我尝试内置功能时
df_post['pickup_dropoff_distance']=gd.VincentyDistance(df_post['pickup_coord'],df_post['dropoff_coord']).miles
我收到一个新错误:
ValueError: When creating a Point from sequence, it must not have more than 3 items.
有人可以帮助我解决为什么会出现错误,以及可能的解决方案。
答案 0 :(得分:1)
距离计算器的语法为geopy.distance.VincentyDistance(coords_1, coords_2).miles
,其中coords_1
和coords_2
为元组。
要将函数应用于数据框中的每一行,您需要使用pd.DataFrame.apply
:
def distancer(row):
coords_1 = (row['pickup_lat'], row['pickup_long'])
coords_2 = (row['dropoff_lat'], row['dropoff_long'])
return geopy.distance.VincentyDistance(coords_1, coords_2).miles
df_post['pickup_dropoff_distance'] = df_post.apply(distancer, axis=1)
答案 1 :(得分:-2)
试试这个应该有效
df_post['lat1'] = radians(df_post['pickup_lat'].astype(float))