title: what is C parameter in sklearn Logistic Regression?
body: <p>What is the meaning of <code>C</code> parameter in <code>sklearn.linear_model.LogisticRegression</code>? How does it affect the decision boundary? Do high values of <code>C</code> make the decision boundary non-linear? How does overfitting look like for logistic regression if we visualize the decision boundary?</p>