def __init__(self,*args,**kwargs):
        Transformer.__init__(self,*args,**kwargs)

        self.nlevels = int(kwargs.get("adj-level",0))

        self.method = kwargs.get("adj-method","BH")
        self.pval = kwargs.get("p-value","P-value")
 def __call__ (self, data):
     
     if self.nlevels == 0:
         self.nlevels = len(DataTree.getPaths(data))
         
     return Transformer.__call__(self,data)
 def __init__self(*args, **kwargs):
     Transformer.__init__(self, *args, **kwargs)
     
     self.background = "keep-background" in kwargs