docstr: Log-likelihood of model.
          
docstr_tok: ["Log-likelihood","of","model","."]
code: def logL(self, theta, Y, nuisance=None):
      """Log-likelihood of model."""
      raise NotImplementedError
  
imports: import numpy
  from nibabel.onetime import auto_attr
  from numpy.linalg import inv
  from scipy.stats import t
  from ...utils.matrices import pos_recipr
label_desc: Use image node_id 1 for calling the LikelihoodModel obj's underlying member method code with example usage: obj.logL(theta, Y, nuisance) without return types