I just finished covering a few numerical techniques for solving systems of equations, which can be applied to find best-fit lines through a give set of data points. The four points $latex \{(0,0), (1,3), (2,3), (5,6)\}$ are arranged into an inconsistent system of four equations and two unknowns: $latex b+a(0) = 0 \\ b+a(1) = 3 \\ b+a(2) … Continue reading Iterative OLS Regression Using Gauss-Seidel

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