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58问答库 > python的dataframe中两列日期相减,怎么计算间隔的天数,并写入到dataframe中作为一个新列

python的dataframe中两列日期相减,怎么计算间隔的天数,并写入到dataframe中作为一个新列

2025-04-07 10:20:02

推荐回答（3个）

回答（1）：

a=pd.read('****')   #load csv
b=pd.DataFrame(a)
b['time_interval']=pd.to_datetime(b['xxx'])-pd.to_datetime(b['xxx'])

回答（2）：

mport numpy as np
import matplotlib.pyplot as plt
import pandas as pd
print(pd.read_csv('002340.csv'))
df=pd.read_csv('002340.csv',usecols=[5,2],delimiter=',')
print(df)
print(df.close-df.open)
重点在DataFrame.列名-DataFrame.列名

回答（3）：

不知道这个这么插入代码，复制前面答主的回答，只是他没有把时间间隔转成天数。
a=pd.read('****') #load csv
b=pd.DataFrame(a)
b['time_interval']=(pd.to_datetime(b['xxx'])-pd.to_datetime(b['xxx'])).dt.days #这里不同

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