C++ (Cpp) GSupervisedLearner::crossValidate示例

示例#1

文件： GEnsemble.cpp 项目： mikegashler/waffles

// virtual
void GBucket::trainInner(const GMatrix& features, const GMatrix& labels)
{
	size_t nLearnerCount = m_models.size();
	double dBestError = 1e200;
	GSupervisedLearner* pLearner;
	m_nBestLearner = (size_t)m_rand.next(nLearnerCount);
	double err;
	for(size_t i = 0; i < nLearnerCount; i++)
	{
		pLearner = m_models[i];
		err = pLearner->crossValidate(features, labels, 2);
		if(err < dBestError)
		{
			dBestError = err;
			m_nBestLearner = i;
		}
		pLearner->clear();
	}
	pLearner = m_models[m_nBestLearner];
	pLearner->train(features, labels);
}