code: def reduce_freqs(freqlist):
      """
      Add up a list of freq counts to get the total counts.
      """
      allfreqs = np.zeros_like(freqlist[0])
      for f in freqlist:
          allfreqs += f
      return allfreqs
  
file_path: ipyparallel/examples/pi/pidigits.py
imports: import os
  from urllib.request import urlretrieve
  import numpy
  from matplotlib import pyplot
label_desc: Use image node_id 4 for calling a global function with example usage: reduce_freqs(freqlist) and returns: allfreqs