def E_sumlogLam(self):
    return np.sum(digamma(self.a) - np.log(self.b))
set parameters according to specification
dataset/ETHPy150Open daeilkim/refinery/refinery/bnpy/bnpy-dev/bnpy/distr/GaussGammaDistr.py/GaussGammaDistr.E_sumlogLam--crossover with--dataset/ETHPy150Open projectatomic/osbs-client/osbs/build/build_request.py/CommonBuild.set_params