How to get mean values per specific time range pandas-CodePudding

I want to calculate the average temperature per day within an specific time frame, for example average temperature on the date = 2021-03-11 between time = 14:23:00 and 16:53:00. I tried with a pivot_table the following:

in_range_df = pd.pivot_table(df, values=['Air_temp'],
                 index=['Date','Time'],
                  aggfunc={'Air_temp':np.mean})

The dataframe looks like this:

But how can I specify the time range now? Any help is appreciated.

CodePudding user response：

Usually you can use between :

df[df["Datum"].between('2021-03-11 14:23:00',
                       '2021-03-11 16:53:00',)]["Air_temp"].mean()

CodePudding user response：

First you should convert Datum column to datetime type:

df['Datum'] = pd.to_datetime(df['Datum'])

Then you can use df.loc like this:

t1 = '2021-03-11 14:23:00'
t2 = '2021-03-11 16:53:00'

df.loc[(df['Datum'] > t1) & (df['Datum'] < t2)]['Air_tmp'].mean()