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Mar 20th, 2018
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  1. N = (len(x[:, 0]))
  2. sum = 0
  3.  
  4.  
  5. for i in range(0, N + 1):
  6. sum += (y[:, i] - w[i, x] * y[:, i]) ** 2
  7.  
  8. sum = sum / N
  9.  
  10. return sum
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