def __init__(self, data):
_dlm.__init__(self, data)
# indicate whether the plot modules has been loaded.
# We add this flag, since we only import plot module
# when they are called to avoid any error due to
# plot that blocks using this package. This flag can
# help without doing import-check (expensive) every time
# when plot function is called.
self.plotLibLoaded = False
def __init__(self, data):
_dlm.__init__(self, data)