A simple yet effective model for dealing with linear classification problems.
<p>Logistic Regression is a cornerstone of machine learning, facilitating classification by modeling the probability that an instance belongs to a particular category. The <code>scikit-learn</code> (often abbreviated to <code>sklearn</code>) library in Python provides robust tools for building Logistic Regression models. This article will provide a detailed overview of the Logistic Regression model in <code>scikit-learn</code>, including its usage, attributes, methods, and practical tips.</p>
<h2>What is Logistic Regression</h2>
<p>Logistic Regression is a statistical method for predicting binary outcomes. Given a set of features, it estimates the probability that an instance/observation belongs to a particular category. Despite the name, it is used for classification problems, not regression problems. The model outputs a probability that the given input point belongs to a particular class, which is transformed into a binary outcome via a threshold (e.g., if the output probability is greater than 0.5, classify it as class 1, class 0).</p>
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