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andreiz / classifier.php
Last active July 12, 2022 12:50
A simple example of logistic regression via gradient descent in PHP.
<?php
error_reporting(E_ALL);
define('NUM_FEATURES', 3);
// My dataset describes cities around the world where I might consider living.
// Each sample (city) consists of 3 features:
// * Feature 1: average low winter temperature in the city
// * Feature 2: city population, in millions