# Plot method for check model for (non-)normality of residuals

Source:`R/plot.check_normality.R`

`plot.see_check_normality.Rd`

The `plot()`

method for the `performance::check_normality()`

function.

## Arguments

- x
An object.

- type
Character vector, indicating the type of plot. Options are

`"qq"`

(default) for quantile-quantile (Q-Q) plots,`"pp"`

for probability-probability (P-P) plots, or`"density"`

for density overlay plots.- data
The original data used to create this object. Can be a statistical model.

- size_line
Numeric value specifying size of line geoms.

- size_point
Numeric specifying size of point-geoms.

- base_size, size_axis_title, size_title
Numeric value specifying size of axis and plot titles.

- alpha
Numeric value specifying alpha level of the confidence bands.

- dot_alpha
Numeric value specifying alpha level of the point geoms.

- colors
Character vector of length two, indicating the colors (in hex-format) for points and line.

- detrend
Logical that decides if Q-Q and P-P plots should be de-trended (also known as

*worm plots*).- method
The method used for estimating the qq/pp bands. Default to

`"ell"`

(equal local levels / simultaneous testing - recommended). Can also be one of`"pointwise"`

or`"boot"`

for pointwise confidence bands, or`"ks"`

or`"ts"`

for simultaneous testing. See`qqplotr::stat_qq_band()`

for details.- ...
Arguments passed to or from other methods.

## See also

See also the vignette about `check_model()`

.

## Examples

```
library(performance)
m <<- lm(mpg ~ wt + cyl + gear + disp, data = mtcars)
result <- check_normality(m)
plot(result)
plot(result, type = "qq", detrend = TRUE)
```