타임스탬프를 비교하기 위해 인덱스 연산자(예:대괄호)를 사용할 수 있습니다. 먼저 필요한 라이브러리를 가져옵니다 -
import pandas as pd
3개의 열이 있는 DataFrame 만들기 -
dataFrame = pd.DataFrame( { "Car": ["Audi", "Lexus", "Tesla", "Mercedes", "BMW"], "Date_of_Purchase": [ pd.Timestamp("2021-06-10"), pd.Timestamp("2021-07-11"), pd.Timestamp("2021-06-25"), pd.Timestamp("2021-06-29"), pd.Timestamp("2021-03-20"), ], "Date_of_Service": [ pd.Timestamp("2021-11-10"), pd.Timestamp("2021-12-11"), pd.Timestamp("2021-11-25"), pd.Timestamp("2021-11-29"), pd.Timestamp("2021-08-20"), ] })
이제 두 날짜 열의 일부 타임스탬프를 비교하겠습니다. −
timestamp1_diff = abs(dataFrame['Date_of_Purchase'][0]-dataFrame['Date_of_Service'][0]) timestamp2_diff = abs(dataFrame['Date_of_Purchase'][1]-dataFrame['Date_of_Service'][1])
모든 타임스탬프 비교 -
timestamp_diff = abs(dataFrame['Date_of_Purchase']-dataFrame['Date_of_Service'])
예
다음은 전체 코드입니다 -
import pandas as pd # create a dataframe with 3 columns dataFrame = pd.DataFrame( { "Car": ["Audi", "Lexus", "Tesla", "Mercedes", "BMW"], "Date_of_Purchase": [ pd.Timestamp("2021-06-10"), pd.Timestamp("2021-07-11"), pd.Timestamp("2021-06-25"), pd.Timestamp("2021-06-29"), pd.Timestamp("2021-03-20"), ], "Date_of_Service": [ pd.Timestamp("2021-11-10"), pd.Timestamp("2021-12-11"), pd.Timestamp("2021-11-25"), pd.Timestamp("2021-11-29"), pd.Timestamp("2021-08-20"), ] }) print"DataFrame...\n", dataFrame # compare specific timestamps timestamp1_diff = abs(dataFrame['Date_of_Purchase'][0]-dataFrame['Date_of_Service'][0]) timestamp2_diff = abs(dataFrame['Date_of_Purchase'][1]-dataFrame['Date_of_Service'][1]) print"\nDifference between Car 1 Date of Purchase and Service \n",timestamp1_diff print"\nDifference between Car 2 Date of Purchase and Service \n",timestamp2_diff # compare all timestamps by finding difference timestamp_diff = abs(dataFrame['Date_of_Purchase']-dataFrame['Date_of_Service']) print"\nDifference between two Timestamps: \n",timestamp_diff
출력
이것은 다음과 같은 출력을 생성합니다 -
DataFrame... Car Date_of_Purchase Date_of_Service 0 Audi 2021-06-10 2021-11-10 1 Lexus 2021-07-11 2021-12-11 2 Tesla 2021-06-25 2021-11-25 3 Mercedes 2021-06-29 2021-11-29 4 BMW 2021-03-20 2021-08-20 Difference between Car 1 Date of Purchase and Service 153 days 00:00:00 Difference between Car 2 Date of Purchase and Service 153 days 00:00:00 Difference between two Timestamps: 0 153 days 1 153 days 2 153 days 3 153 days 4 153 days dtype: timedelta64[ns]