def objGrad_c(c, *args):
  v = sigmoid(c)
  # Force away from edges 0 or 1 for numerical stability  
  #v = np.maximum(v,EPS)
  #v = np.minimum(v,1.0-EPS)

  dfdv = objGrad_v(v, *args)
  dvdc = v * (1-v)
  dfdc = dfdv * dvdc
  return dfdc

########################################################### Transform funcs
########################################################### v2c, c2v
Test :py:meth:`.MongoengineEncoder.default` with default fallback.
dataset/ETHPy150Open daeilkim/refinery/refinery/bnpy/bnpy-dev/bnpy/allocmodel/admix/OptimizerForHDPPE.py/objGrad_c--crossover with--dataset/ETHPy150Open brocaar/flask-views/flask_views/tests/unit/db/mongoengine/test_json.py/MongoengineEncoderTestCase.test_default_default_fallback