# Residual Standard Error (RSE)

### Description

Compute the residual standard error of fitted linear (mixed effects) models.

### Usage

1 | ```
rse(fit)
``` |

### Arguments

`fit` |
Fitted linear model of class |

### Value

The residual standard error of `fit`

.

### Note

The residual standard error is the square root of the residual sum of squares divided by the residual degrees of freedom.

### See Also

`cv`

for the coefficient of variation, and
`rmse`

for the root mean squared error.

### Examples

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