county_station_data = pd.read_csv(Reco_Station_Path, sep=',')
dict = {'Bryan South': [27, 0.40000000000000002], 'Lee': [9, 0.71232876712328774], 'Thomas': [4, 0.78846153846153855], 'Twiggs': [3, 0.55319148936170215], 'Ware': [9, 0.58536585365853655], 'Wilkinson': [15, 0.41379310344827586], 'Glascock': [19, 0.39999999999999997], 'Ben Hill': [15, 0.67741935483870974], 'Echols': [23, 0.30769230769230765],.....}
county_station_data['a'], county_station_data['b'] = county_station_data.Counties.map(dict)
我得到以下错误:
Traceback (most recent call last):
File "...model/test.py", line 14, in <module>
county_station_data['a'], county_station_data['b'] = county_station_data.Counties.map(dict)
ValueError: too many values to unpack (expected 2)
我看了其他的例子,发现可以用同样的方法。我不知道为什么我会出错。任何帮助都将不胜感激。谢谢
county_station_data.head()
>> Counties Recommended_Station
0 Appling Waycross
1 Atkinson Adel
2 Bacon Sterling
3 Baker Camilla
4 Baldwin Milledgeville
问题是,根据dict的映射会产生一列
list
对象,这在pandas
中是不可取的这里有一个解决方法,通过定义定制的
apply/map
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