How do we find validation error of linear regression and elastic-net using Scikit-learn and python?

Question

When do we use test set and validation set while calculating errors? I have linear regression and elastic-net models working. I am new to Machine learning with Scikit-learn and Python.

I am trying to solve this problem. Data Set: UCI Machine Learning Forest Fire data

Answer 1

您可以在构建模型时使用测试集，使用最小化误差的方法。构建模型后，您可以使用验证集计算实际误差，然后使用误差修正参数。我希望这样能帮你。