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Results tagged with linear-regression
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user 52842
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Fitting a quadratic using regression when the y-intercept needs to be 0
If you want $a_0$ to be $0$, then the curve you are trying to fit has equation $y = a_1 x + a_2 x^2$. If you derive the normal equations starting from this equation, you get
$a_1 \sum x_i^2 + a_2 \su …