Chart for identifying outliers.

## Arguments

- model
An object of class

`lm`

.- threshold
Threshold for detecting outliers. Default is 2.

- print_plot
logical; if

`TRUE`

, prints the plot else returns a plot object.

## Value

`ols_plot_resid_stand`

returns a list containing the
following components:

- outliers
a

`data.frame`

with observation number and`standardized resiudals`

that exceed`threshold`

for classifying an observation as an outlier

- threshold
`threshold`

for classifying an observation as an outlier

## Details

Standardized residual (internally studentized) is the residual divided by estimated standard deviation.

## Examples

```
model <- lm(mpg ~ disp + hp + wt, data = mtcars)
ols_plot_resid_stand(model)
ols_plot_resid_stand(model, threshold = 3)
```