def __init__(self, index=None, columns=None, ndim=None, freq=None):
if index is not None and not isinstance(index, pd.Index):
index = pd.Index(index)
if columns is not None and not isinstance(columns, pd.Index):
columns = pd.Index(columns)
self._index = index
self._columns = columns
self._ndim = ndim
self._freq = None
if freq is not None:
self._freq = freq_delta(freq)
elif isinstance(self.index, DatetimeTypes):
if self.index.freq is not None:
self._freq = freq_delta(self.index.freq)
elif self.index.inferred_freq is not None:
self._freq = freq_delta(self.index.inferred_freq)
def freq(self):
"""Index frequency."""
if self._freq is not None:
return freq_delta(self._freq)
if isinstance(self.index, DatetimeTypes):
if self.index.freq is not None:
try:
return freq_delta(self.index.freq)
except ValueError as e:
warnings.warn(repr(e))
if self.index.inferred_freq is not None:
try:
return freq_delta(self.index.inferred_freq)
except ValueError as e:
warnings.warn(repr(e))
return self._freq
def year_freq(self):
"""Year frequency."""
from vectorbt import settings
year_freq = self._year_freq
if year_freq is None:
year_freq = settings.returns['year_freq']
return freq_delta(year_freq)
def freq(self):
"""Index frequency."""
freq = self._freq
if freq is None:
freq = defaults.array_wrapper['freq']
if freq is not None:
return freq_delta(freq)
if isinstance(self.index, DatetimeTypes):
if self.index.freq is not None:
try:
return freq_delta(self.index.freq)
except ValueError as e:
warnings.warn(repr(e))
if self.index.inferred_freq is not None:
try:
return freq_delta(self.index.inferred_freq)
except ValueError as e:
warnings.warn(repr(e))
return freq
def freq(self):
"""Index frequency."""
from vectorbt import settings
freq = self._freq
if freq is None:
freq = settings.array_wrapper['freq']
if freq is not None:
return freq_delta(freq)
if isinstance(self.index, DatetimeTypes):
if self.index.freq is not None:
try:
return freq_delta(self.index.freq)
except ValueError as e:
warnings.warn(repr(e), stacklevel=2)
if self.index.inferred_freq is not None:
try:
return freq_delta(self.index.inferred_freq)
except ValueError as e:
warnings.warn(repr(e), stacklevel=2)
return freq
def year_freq(self):
"""Year frequency."""
year_freq = self._year_freq
if year_freq is None:
year_freq = defaults.returns['year_freq']
return freq_delta(year_freq)