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<p>form of regression analysis is <a href="page.php?w=linear_regression">linear regression</a>, in which one finds the line (or a more complex <a href="page.php?w=linear_combination">linear combination</a>) that most closely fits the data according to a specific mathematical criterion. For example, the method of <a href="page.php?w=ordinary_least_squares">ordinary least squares</a> computes the unique line (or <a href="page.php?w=hyperplane">hyperplane</a>) that minimizes the sum of squared differences between the true data and that line (or hyperplane).</p><p>
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