Mistakes to avoid
Determine a model that fits observed data as closely as possible
Practical sheet REF: FIC1412 V1
Mistakes to avoid
Determine a model that fits observed data as closely as possible

Author : Morgan GERMA

Publication date: April 10, 2015 | Lire en français

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9. Mistakes to avoid

9.1 Don't think that R2 alone can validate a model

The coefficient of determination R 2 is not sufficient to validate a model. Indeed, while it shows that your regression line models your study fairly well, it doesn't show whether your regression passes through the origin (although this is a situation that can be physically expected), and it isn't powerful enough to detect the presence of outliers, or even an outlier level.

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