def __init__(self, majloc=None, minloc=None,<EOL>majfmt=None, minfmt=None, label=None):
self.majloc = majloc<EOL>self.minloc = minloc<EOL>self.majfmt = majfmt<EOL>self.minfmt = minfmt<EOL>self.label = label<EOL>
majloc and minloc: TickLocators for the major and minor ticks
majfmt and minfmt: TickFormatters for the major and minor ticks
label: the default axis label

If any of the above are None, the axis will simply use the default