r2
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@ -142,5 +142,31 @@ $$
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\tilde{y} = y[i_{\tilde{y}}] = 4
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\tilde{y} = y[i_{\tilde{y}}] = 4
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$$
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$$
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2. SST berechnen
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$$
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SST = \sum_{i=1}^{n} (y_i-\tilde{y})^2
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$$
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$$
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SST = (2-4)^2+(3-4)^2+(5-4)^2+(4-4)^2+(6-4)^2 = 10
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$$
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3. SSR berechnen
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$$
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SSR = \sum_{i=1}^{n} \hat{y}_i-\tilde{y})^2
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$$
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$$
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SSR = (2.2-4)^2+(3.1-4)^2+(4-4)^2+(4.9-4)^2+(5.8-4)^2 = 8.1
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$$
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4. R<sup>2<sup> berechnen
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$$
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R^2 = \frac{SSR}{SST}
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$$
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$$
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R^2 = \frac{8.1}{10} = 0.81
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$$
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5. Interpretieren
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0.81 bedeutet, dass viele der Datenpunkte in der Nähe der Regressionsgerade sind
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## Klassifikation
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## Klassifikation
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## Unsupervised Learning Clustering
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## Unsupervised Learning Clustering
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