def is_superperiod(source, target):
"""
Returns True if upsampling is possible between source and target
frequencies
Parameters
----------
source : string
Frequency converting from
target : string
Frequency converting to
Returns
-------
is_superperiod : boolean
"""
if target is None or source is None:
return False
source = _maybe_coerce_freq(source)
target = _maybe_coerce_freq(target)
if _is_annual(source):
if _is_annual(target):
return _get_rule_month(source) == _get_rule_month(target)
if _is_quarterly(target):
smonth = _get_rule_month(source)
tmonth = _get_rule_month(target)
return _quarter_months_conform(smonth, tmonth)
return target in ['D', 'C', 'B', 'M', 'H', 'T', 'S', 'L', 'U', 'N']
elif _is_quarterly(source):
return target in ['D', 'C', 'B', 'M', 'H', 'T', 'S', 'L', 'U', 'N']
elif _is_monthly(source):
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif _is_weekly(source):
return target in [source, 'D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'B':
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'C':
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'D':
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'H':
return target in ['H', 'T', 'S', 'L', 'U', 'N']
elif source == 'T':
return target in ['T', 'S', 'L', 'U', 'N']
elif source == 'S':
return target in ['S', 'L', 'U', 'N']
elif source == 'L':
return target in ['L', 'U', 'N']
elif source == 'U':
return target in ['U', 'N']
elif source == 'N':
return target in ['N']
def is_superperiod(source, target):
"""
Returns True if upsampling is possible between source and target
frequencies
Parameters
----------
source : string
Frequency converting from
target : string
Frequency converting to
Returns
-------
is_superperiod : boolean
"""
if target is None or source is None:
return False
source = _maybe_coerce_freq(source)
target = _maybe_coerce_freq(target)
if _is_annual(source):
if _is_annual(target):
return _get_rule_month(source) == _get_rule_month(target)
if _is_quarterly(target):
smonth = _get_rule_month(source)
tmonth = _get_rule_month(target)
return _quarter_months_conform(smonth, tmonth)
return target in ['D', 'C', 'B', 'M', 'H', 'T', 'S', 'L', 'U', 'N']
elif _is_quarterly(source):
return target in ['D', 'C', 'B', 'M', 'H', 'T', 'S', 'L', 'U', 'N']
elif _is_monthly(source):
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif _is_weekly(source):
return target in [source, 'D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'B':
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'C':
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'D':
return target in ['D', 'C', 'B', 'H', 'T', 'S', 'L', 'U', 'N']
elif source == 'H':
return target in ['H', 'T', 'S', 'L', 'U', 'N']
elif source == 'T':
return target in ['T', 'S', 'L', 'U', 'N']
elif source == 'S':
return target in ['S', 'L', 'U', 'N']
elif source == 'L':
return target in ['L', 'U', 'N']
elif source == 'U':
return target in ['U', 'N']
elif source == 'N':
return target in ['N']