如何在python中设置多个条件

Question

我想在选择数据时指定两个条件。这是我的密码

data = np.genfromtxt("ca1_data/mrtfares.csv",
               delimiter=',',skip_header=1,
               dtype=[('Fare_Type','U50'),('Applicable_Time','U50'),('Distance','U50'),('Fare_per_Ride','i8')],
               missing_values=['na','-'],filling_values=[0])

x_adultcard = data[data['Fare_Type']=='Single trip' and data['Applicable_Time']=='All timings']['Distance']
y_adultcard = data[data['Fare_Type']=='Single trip' and data['Applicable_Time']=='All timings']['Fare_per_Ride']

但我得到了这个错误

---> 14 x_adultcard = data[data['Fare_Type']=='Single trip' and data['Applicable_Time']=='All timings']['Distance']
     15 y_adultcard = data[data['Fare_Type']=='Single trip' and data['Applicable_Time']=='All timings']['Fare_per_Ride']
     16 

ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

这可能是一个非常明显的答案？我刚刚开始学习python，所以我知道的不多。提前谢谢！你知道吗

Answer 1

对于numpy数组，使用&作为and，|作为or