code: def make_circle():
      data = make_square()
      x, y = data[:, 0], data[:, 1]
  
      distance_from_center = (x - 0.5) ** 2 + (y - 0.5) ** 2
      return data[distance_from_center <= 0.5**2]
  
file_path: neupy/examples/competitive/utils.py
imports: from itertools import product
  import numpy
  import matplotlib.pyplot
label_desc: Use image node_id 4 for calling a global function with example usage: make_circle() and returns: data