': Returns information on how to handle an axis that has Epoch data.
= INPUT VARIABLES
- unit    The units to use for a axis with Epoch data.
= RETURN VALUE
- Returns a matplotlib AxisInfo data structure that contains
minor/major formatters, major/minor locators, and default
label information.'

@staticmethod
def axisinfo(unit, axis):

    majloc = date_ticker.AutoDateLocator()
    majfmt = date_ticker.AutoDateFormatter(majloc)
    return units.AxisInfo(majloc=majloc, majfmt=majfmt, label=unit)
