helperFuncs.py 文件源码

def getMinutesFromMidnight(df, feature):
    time_deltas = pd.to_datetime(df[feature]) - pd.to_datetime(df['timestamp'])
    mins = [time / pd.Timedelta('1 minute') for time in time_deltas]
    return [time if not pd.isnull(time) else np.nan for time in mins]