class_docstr: An abstract class to be sub-classed by specific odf models
  
  All odf models should provide a fit method which may take data as it's
  first and only argument.
class_docstr_tok: ["An","abstract","class","to","be","sub-classed","by","specific","odf","models","All","odf","models","should","provide","a","fit","method","which","may","take","data","as","it's","first","and","only","argument","."]
docstr: To be implemented by specific odf models
docstr_tok: ["To","be","implemented","by","specific","odf","models"]
code: def fit(self, data):
      """To be implemented by specific odf models"""
      raise NotImplementedError("To be implemented in sub classes")
  
file_path: dipy/dipy/reconst/odf.py
imports: from dipy.reconst.base import ReconstModel, ReconstFit
  import numpy
label_desc: Use image node_id 2 for calling the OdfModel obj's underlying member method code with example usage: obj.fit(data) without return types