# Copying model residuals to the host table

The residual values (or residuals) of a linear model are equal to the actual values minus the predicted values. For non-linear models, the definition is more complicated, but in all cases smaller residual values correspond to better model fit. Residual analysis can help evaluate the overall quality of a model and identify outliers.

To create a numeric column out of a model’s residual values:

1. In the Model view, choose Model > Copy Residuals to Host Table

Because the values are copied, changes to the underlying model will not affect the values in the new column.

See also:

- Copying a model’s predicted values to the host table
- Exporting a model as an interactive spreadsheet
- About models

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