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']