class_docstr: This class allows the user to filter multi-column data sets by specifying
  multiple criteria
  
  Wraps methods from DataFilterParameter: setFields, generateMask,
  filterData, and describe.
class_docstr_tok: ["This","class","allows","the","user","to","filter","multi-column","data","sets","by","specifying","multiple","criteria","Wraps","methods","from","DataFilterParameter",":","setFields",",","generateMask",",","filterData",",","and","describe","."]
docstr: Add a new filter and return the created parameter item.
          
docstr_tok: ["Add","a","new","filter","and","return","the","created","parameter","item","."]
code: def addFilter(self, name):
      """Add a new filter and return the created parameter item."""
      return self.params.addNew(name)
  
imports: from collections import OrderedDict
  import numpy
  from ..None import functions
  from ..None import parametertree
  from ..Qt import QtCore
label_desc: Use image node_id 3 for calling the DataFilterWidget obj's underlying member method code with example usage: obj.addFilter(name) and returns: self