code: def lnprobfn(p, icov):
      return -0.5 * np.dot(p, np.dot(icov, p))
  
file_path: emcee/document/plots/oned.py
imports: import os
  import sys
  import time
  from multiprocessing import Pool
  import h5py
  import matplotlib.pyplot
  import numpy
  import emcee
label_desc: Use image node_id 1 for calling a global function with example usage: lnprobfn(p, icov) and returns: unknown