code: def setUp(self):
      self.vectors = numpy.random.randn(10, 100)
      self.pdp = PCADiscretizedProjections("pdp", 4, self.vectors, 0.1)
  
imports: import numpy
  import scipy
  import unittest
  from nearpy.hashes import RandomBinaryProjections, RandomDiscretizedProjections, PCABinaryProjections, PCADiscretizedProjections
label_desc: Use image node_id 1 for calling the TestPCADiscretizedProjections obj's underlying member method code with example usage: obj.setUp() without return types