def epoch_to_num(self, epoch):
    '\n        Convert CDF EPOCH to matplotlib number.\n\n        Same output as :func:`~matplotlib.dates.date2num` and useful for\n        plotting large data sets without converting the times through datetime.\n\n        Parameters\n        ==========\n        epoch : double\n            EPOCH to convert. Lists and numpy arrays are acceptable.\n\n        Returns\n        =======\n        out : double\n            Floating point number representing days since 0001-01-01.\n        '
    return (((epoch - 31622400000.0) / (((24 * 60) * 60) * 1000.0)) + 1.0)
Convert CDF EPOCH to matplotlib number.

Same output as :func:`~matplotlib.dates.date2num` and useful for
plotting large data sets without converting the times through datetime.

Parameters
==========
epoch : double
    EPOCH to convert. Lists and numpy arrays are acceptable.

Returns
=======
out : double
    Floating point number representing days since 0001-01-01.
def epoch_to_num(self, epoch):
    '\n        Convert CDF EPOCH to matplotlib number.\n\n        Same output as :func:`~matplotlib.dates.date2num` and useful for\n        plotting large data sets without converting the times through datetime.\n\n        Parameters\n        ==========\n        epoch : double\n            EPOCH to convert. Lists and numpy arrays are acceptable.\n\n        Returns\n        =======\n        out : double\n            Floating point number representing days since 0001-01-01.\n        '
    return (((epoch - 31622400000.0) / (((24 * 60) * 60) * 1000.0)) + 1.0)