## How To Solve Logistic Regression Not Converging in Scikit-Learn

When using the Scikit-Learn library, you might encounter a situation where your logistic regression model does not converge. You may get a warning message similar to this: ConvergenceWarning: lbfgs failed to converge (status=1): STOP: TOTAL NO. of ITERATIONS REACHED LIMIT. Increase the number of iterations (max_iter) or scale the data as shown in: https://scikit-learn.org/stable/modules/preprocessing.html Please also refer to the documentation for alternative solver options: https://scikit-learn.org/stable/modules/linear_model.html#logistic-regression n_iter_i = _check_optimize_result( This article aims to help you understand why this happens and how to resolve it....

July 1, 2023 · 6 min · Mario Filho

## How To Train A Logistic Regression Using Scikit-Learn (Python)

Logistic regression is a type of predictive model used in machine learning and statistics. Its purpose is to determine the likelihood of an outcome based on one or more input variables, also known as features. For example, logistic regression can be used to predict the probability of a customer churning, given their past interactions and demographic information. Difference Between Linear And Logistic Regression? Before diving into logistic regression, it’s important to understand its sibling model, linear regression....

June 21, 2023 · 17 min · Mario Filho

## How To Get Feature Importance In Logistic Regression

Are you looking to make sense of your logistic regression model and determine which features are truly important in predicting your target variable? It can be quite frustrating trying to understand which features are driving your model’s predictions, especially when you have a large number of them. Not to mention, the presence of correlated features can make the task even more challenging. In this tutorial, I’ll walk you through different methods for assessing feature importance in both binary and multiclass logistic regression models....

May 9, 2024 · 10 min · Mario Filho

## Does Logistic Regression Require Feature Scaling?

To put it simply, feature scaling is not required for logistic regression, but it can be beneficial in a number of scenarios. It helps improve the convergence of gradient-based optimization algorithms and ensures that regularization techniques, like L1 and L2, are applied uniformly across all features. Another advantage to scaling is that it can help with the interpretation of the model coefficients. In this tutorial, we will explore the impact of feature scaling on logistic regression’s performance using the Red Wine dataset as an example....

March 27, 2023 · 6 min · Mario Filho