Source code for pyFTS.models.seasonal.common

import numpy as np
import pandas as pd
from enum import Enum
from pyFTS.common import FuzzySet, Membership
from pyFTS.partitioners import partitioner, Grid
from datetime import date as dt



[docs]class DateTime(Enum): year = 1 month = 12 day_of_month = 30 day_of_year = 364 day_of_week = 7 hour = 6 minute = 7 second = 8 hour_of_day = 24 hour_of_week = 168 hour_of_month = 744 hour_of_year = 8736 minute_of_hour = 60 minute_of_day = 1440 minute_of_week = 10080 minute_of_month = 44640 minute_of_year = 524160 second_of_minute = 60.00001 second_of_hour = 3600 second_of_day = 86400
[docs]def strip_datepart(date, date_part): if date_part == DateTime.year: tmp = date.year elif date_part == DateTime.month: tmp = date.month elif date_part == DateTime.day_of_year: tmp = date.timetuple().tm_yday elif date_part == DateTime.day_of_month: tmp = date.day elif date_part == DateTime.day_of_week: tmp = date.weekday() elif date_part == DateTime.hour or date_part == DateTime.hour_of_day: tmp = date.hour elif date_part == DateTime.hour_of_week: wk = (date.weekday()-1) * 24 tmp = date.hour + wk elif date_part == DateTime.hour_of_month: wk = (date.day-1) * 24 tmp = date.hour + wk elif date_part == DateTime.hour_of_year: wk = (date.timetuple().tm_yday-1) * 24 tmp = date.hour + wk elif date_part == DateTime.minute or date_part == DateTime.minute_of_hour: tmp = date.minute elif date_part == DateTime.minute_of_day: wk = date.hour * 60 tmp = date.minute + wk elif date_part == DateTime.minute_of_week: wk1 = (date.weekday()-1) * 1440 #24 * 60 wk2 = date.hour * 60 tmp = date.minute + wk1 + wk2 elif date_part == DateTime.minute_of_month: wk1 = (date.day - 1) * 1440 #24 * 60 wk2 = date.hour * 60 tmp = date.minute + wk1 + wk2 elif date_part == DateTime.minute_of_year: wk1 = (date.timetuple().tm_yday - 1) * 1440 #24 * 60 wk2 = date.hour * 60 tmp = date.minute + wk1 + wk2 elif date_part == DateTime.second or date_part == DateTime.second_of_minute: tmp = date.second elif date_part == DateTime.second_of_hour: wk1 = date.minute * 60 tmp = date.second + wk1 elif date_part == DateTime.second_of_day: wk1 = date.hour * 3600 #60 * 60 wk2 = date.minute * 60 tmp = date.second + wk1 + wk2 else: raise Exception("Unknown DateTime value!") return tmp
[docs]class FuzzySet(FuzzySet.FuzzySet): """ Temporal/Seasonal Fuzzy Set """ def __init__(self, datepart, name, mf, parameters, centroid, alpha=1.0, **kwargs): super(FuzzySet, self).__init__(name, mf, parameters, centroid, alpha, **kwargs) self.datepart = datepart self.type = kwargs.get('type', 'seasonal')
[docs] def transform(self, x): if self.type == 'seasonal' and isinstance(x, (dt, pd.Timestamp)): dp = strip_datepart(x, self.datepart) else: dp = x return dp