gt;


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layout: false
class: inverse, middle
name: accuracy

# Assessing model accuracy


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layout: true
# Model accuracy

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## Loss

*Prediction error* is defined as:
`$$\color{#FFA500}{\mathbf{y}}_i - \hat{\color{#FFA500}{\mathbf{y}}}_i$$`
&lt;!-- `$$\color{#FFA500}{\mathbf{y}}_i - \hat{\color{#20B2AA}{f}}\!\left( \color{#6A5ACD}{x}_i \right) = \color{#FFA500}{\mathbf{y}}_i - \hat{\color{#FFA500}{\mathbf{y}}}_i$$` --&gt;
the difference between the label `\(\left( \color{#FFA500}{\mathbf{y}} \right)\