def render_to_response(self, context_data={}):
        return render_template(self.template_name, **context_data)
R^2 (coefficient of determination) regression score function.
dataset/ETHPy150Open brocaar/flask-views/flask_views/base.py/TemplateResponseMixin.render_to_response--crossover with--dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/metrics/regression.py/r2_score