Python Pandas – 过滤两个日期之间的 DataFrame
要过滤两个日期之间的 DataFrame,可以使用 dataframe.loc。首先,导入所需的库 −
import pandas as pd
使用日期记录创建一个列表字典 −
d = {'Car': ['BMW', 'Lexus', 'Audi', 'Mercedes', 'Jaguar', 'Bentley'],'Date_of_Purchase': ['2021-07-10', '2021-08-12', '2021-06-17', '2021-03-16', '2021-02-19', '2021-08-22'] }
从上述列表字典创建 dataframe
dataFrame = pd.DataFrame(d)
获取在两个日期之间(即第 1 个日期:2021-05-10 和第 2 个日期:2021-08-25)购买的汽车 −
resDF = dataFrame.loc[(dataFrame["Date_of_Purchase"] >= "2021-05-10") & (dataFrame["Date_of_Purchase"] <= "2021-08-25")]
示例
以下是代码 −
import pandas as pd # dictionary of lists d = {'Car': ['BMW', 'Lexus', 'Audi', 'Mercedes', 'Jaguar', 'Bentley'],'Date_of_Purchase': ['2021-07-10', '2021-08-12', '2021-06-17', '2021-03-16', '2021-02-19', '2021-08-22'] } # creating dataframe from the above dictionary of lists dataFrame = pd.DataFrame(d) print"DataFrame...\n",dataFrame # fetch car purchased between two dates # 1st Date: 2021-05-10 # 2nd Date: 2021-08-25 resDF = dataFrame.loc[(dataFrame["Date_of_Purchase"] >= "2021-05-10") & (dataFrame["Date_of_Purchase"] <= "2021-08-25")] # print filtered data frame print"\nCars purchased between 2 dates: \n",resDF
输出
该代码会生成如下输出 −
DataFrame... Car Date_of_Purchase 0 BMW 2021-07-10 1 Lexus 2021-08-12 2 Audi 2021-06-17 3 Mercedes 2021-03-16 4 Jaguar 2021-02-19 5 Bentley 2021-08-22 Cars purchased between 2 dates: Car Date_of_Purchase 0 BMW 2021-07-10 1 Lexus 2021-08-12 2 Audi 2021-06-17 5 Bentley 2021-08-22
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