将递增日期值添加到Pandas中的列

Question

I would like to make a column in existing Pandas df that will be an increment(minutes based, for example) to a set date value, so another words trying to do smth like that:

df_test['date_min'] = datetime.datetime(2019, 3, 1) + pd.to_timedelta(1,unit='min')

I tried this approach and also using for loop but I don't receive an increment just the stable values. How can this task be done in Pandas?

Thanks!

Answer 1

You could use pd.date_range . Just set an initial datetime, a number of periods to add according to the dataframe's shape and a frequency:

df_test['date_min'] = (pd.date_range(start=datetime.datetime(2019, 3, 1), 
                                     periods=df_test.shape[0], 
                                     freq='min'))