Alternative Equation Formats

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MathML

G C V = \frac{1}{n} \sum_{i = 1}^{n} {(\frac{y_{i} - {\hat{f}}_{i}}{1 - t r a c e (S) / n})}^{2} = \frac{R S S}{n (1 - t r a c e (S) / n)^{2}}

Math Rendered as SVG

Math as LaTeX Source

\[ \mathrm{GCV} = \frac{1}{n}\sum _{i=1}^ n \left(\frac{y_ i-\hat{f}_ i}{1-\mathrm{trace}(\mb{S})/n}\right)^2= \frac{\mathrm{RSS}}{n(1-\mathrm{trace}(\mb{S})/n)^2} \]