Question

我的csv有两列CURRENT_PLAN_START_DATE和CURRENT_PLAN_END_DATE。我想返回在7/17/16之后具有CURRENT_PLAN_START_DATE日期的所有行以及在7/31/16之前具有CURRENT_PLAN_END_DATE的所有行。我尝试通过使用python datetime解析7/1/16和7/31/16字符串来做到这一点，但仍然遇到类型不匹配，所以我在电子表格中添加了两列，反复复制这些字符串。这就是我到目前为止所做的：

import pandas as pd


df = pd.read_csv('/Users/Margaret/Desktop/CP1.csv')

start_dates = pd.to_datetime(df['CURRENT_PLAN_START_DATE'])
end_dates = pd.to_datetime(df['CURRENT_PLAN_END_DATE'])
before_date = pd.to_datetime(df['BEFORE_DATE'])
after_date = pd.to_datetime(df['AFTER_DATE'])

#print(start_dates.sort_values())
#print(df.sort_values(by=['CURRENT_PLAN_START_DATE']))

x = df[(df['CURRENT_PLAN_START_DATE'] > df['BEFORE_DATE'][1]) & (df['CURRENT_PLAN_END_DATE'] > df['AFTER_DATE'][1])]

Answer 1

你可以试试这个

df['CURRENT_PLAN_START_DATE'] = pd.to_datetime(df['CURRENT_PLAN_START_DATE'])
df['CURRENT_PLAN_END_DATE'] = pd.to_datetime(df['CURRENT_PLAN_END_DATE'])
df=df.loc[(df['CURRENT_PLAN_START_DATE']>pd.to_datetime('2016-07-01'))&(df['CURRENT_PLAN_END_DATE']<pd.to_datetime('2016-07-31')),:]

查找两个列日期pandas之间的行

1 个答案: