title: What are different options for objective functions available in xgboost.XGBClassifier?
body: <p>Apart from <code>binary:logistic</code> (which is the default objective function), Is there any other built-in objective function that can be used in <a href="http://xgboost.readthedocs.io/en/latest/python/python_api.html" rel="noreferrer"><code>xbgoost.XGBClassifier()</code></a> ?</p>