docstr: Microscopic fractional anisotropy.
  
  Returns
  -------
  ufa : numpy.ndarray
  
  Notes
  -----
  Microscopic fractional anisotropy is calculated as
  
      .. math::
  
          \mu     ext{FA} = \sqrt{C_\mu}
docstr_tok: ["Microscopic","fractional","anisotropy",".","Returns","--","--","--","-","ufa",":","numpy.ndarray","Notes","--","--","-","Microscopic","fractional","anisotropy","is","calculated","as","..","math",":",":","\\mu","ext","{","FA","}","=","\\sqrt","{","C_\\mu","}"]
code: def ufa(self):
      """Microscopic fractional anisotropy.
  
      Returns
      -------
      ufa : numpy.ndarray
  
      Notes
      -----
      Microscopic fractional anisotropy is calculated as
  
          .. math::
  
              \mu\text{FA} = \sqrt{C_\mu}
      """
      ufa = np.sqrt(self.c_mu)
      return ufa
  
imports: from warnings import warn
  import numpy
  from dipy.reconst.base import ReconstModel
  from dipy.reconst.dti import auto_attr
  from dipy.utils.optpkg import optional_package
label_desc: Use image node_id 12 for calling the QtiFit obj's underlying member method code with example usage: obj.ufa() and returns: ufa