[英]Calculate time difference between two dates in the same column in Pandas
根据您存储差异的方式,或者
df = pd.DataFrame(data=['01-01-2006 00:53:00',
'01-01-2006 01:53:00',
'01-01-2006 02:53:00',
'01-01-2006 03:53:00',
'01-01-2006 04:53:00'],
columns=['DATE'])
df['DATE'] = pd.to_datetime(df['DATE'])
df['time_interval'] = df['DATE'].diff().fillna(timedelta(0)).apply(lambda x: x.total_seconds() / 60)
要得到
DATE time_interval
0 2006-01-01 00:53:00 0.0
1 2006-01-01 01:53:00 60.0
2 2006-01-01 02:53:00 60.0
3 2006-01-01 03:53:00 60.0
4 2006-01-01 04:53:00 60.0
或者
df['time_interval'] = df['DATE'].diff().shift(-1).fillna(timedelta(0)).apply(lambda x: x.total_seconds() / 60)
要得到
DATE time_interval
0 2006-01-01 00:53:00 60.0
1 2006-01-01 01:53:00 60.0
2 2006-01-01 02:53:00 60.0
3 2006-01-01 03:53:00 60.0
4 2006-01-01 04:53:00 0.0
您可以将 TimeSeries 移动 1,然后减去。 TimeDelta 对于 TimeSeries 数学很有用。
ts = pd.to_datetime(["2000-01-01 00:34:00", "2000-01-01 02:27:00", "2000-01-01 03:04:00", "2000-01-01 04:05:05"])
datetime_series = pd.DataFrame(ts, columns=['Date'])
datetime_series['ts_Delta'] = datetime_series.Date - datetime_series.shift(1).Date # shift by 1
datetime_series['ts_Delta_Minute'] = (datetime_series.Date - datetime_series.shift(1).Date).dt.total_seconds() / 60 # select DateTime and convert to total seconds, then divide by 60 for minutes
datetime_series['Time_Delta'] = pd.to_timedelta(datetime_series['ts_Delta_Minute']) # useful for TimeSeries math
datetime_series
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