converter.py 文件源码

def convert(values, unit, axis):
        def try_parse(values):
            try:
                return _dt_to_float_ordinal(tools.to_datetime(values))
            except Exception:
                return values

        if isinstance(values, (datetime, pydt.date)):
            return _dt_to_float_ordinal(values)
        elif isinstance(values, np.datetime64):
            return _dt_to_float_ordinal(lib.Timestamp(values))
        elif isinstance(values, pydt.time):
            return dates.date2num(values)
        elif (com.is_integer(values) or com.is_float(values)):
            return values
        elif isinstance(values, compat.string_types):
            return try_parse(values)
        elif isinstance(values, (list, tuple, np.ndarray, Index)):
            if isinstance(values, Index):
                values = values.values
            if not isinstance(values, np.ndarray):
                values = com._asarray_tuplesafe(values)

            if com.is_integer_dtype(values) or com.is_float_dtype(values):
                return values

            try:
                values = tools.to_datetime(values)
                if isinstance(values, Index):
                    values = values.map(_dt_to_float_ordinal)
                else:
                    values = [_dt_to_float_ordinal(x) for x in values]
            except Exception:
                pass

        return values