From 141ec97a2c3f946facfbe3f322b759aaacbe6e93 Mon Sep 17 00:00:00 2001 From: Gourav Kumar Date: Sun, 20 Feb 2022 21:52:33 +0530 Subject: [PATCH] converted dates and values to properties ts['dates'] and ts['values'] keys implemted --- fincal/core.py | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/fincal/core.py b/fincal/core.py index 6893faa..dd541b7 100644 --- a/fincal/core.py +++ b/fincal/core.py @@ -142,13 +142,36 @@ class TimeSeriesCore: data = _preprocess_timeseries(data, date_format=date_format) self.time_series = dict(data) - self.dates = list(self.time_series) if len(self.time_series) != len(data): print("Warning: The input data contains duplicate dates which have been ignored.") - self.start_date = self.dates[0] - self.end_date = self.dates[-1] self.frequency = getattr(AllFrequencies, frequency) self.iter_num = -1 + self._dates = None + self._values = None + self._start_date = None + self._end_date = None + + @property + def dates(self): + if self._dates is None or len(self._dates) != len(self.time_series): + self._dates = list(self.time_series.keys()) + + return self._dates + + @property + def values(self): + if self._values is None or len(self._values) != len(self.time_series): + self._values = list(self.time_series.values()) + + return self._values + + @property + def start_date(self): + return self.dates[0] + + @property + def end_date(self): + return self.dates[-1] def _get_printable_slice(self, n: int): """Returns a slice of the dataframe from beginning and end""" @@ -199,6 +222,10 @@ class TimeSeriesCore: elif isinstance(key, datetime.datetime): item = (key, self.time_series[key]) if isinstance(key, str): + if key == 'dates': + return self.dates + elif key == 'values': + return list(self.time_series.values()) try: dt_key = datetime.datetime.strptime(key, FincalOptions.date_format) item = (dt_key, self.time_series[dt_key])