This function creates a number of diagnostic plots from lm models.

## Usage

```
# S3 method for modelDiagnostics.lm
plot(x, y, plot = TRUE, ask = TRUE, ncol, ...)
```

## Arguments

- x
A

`modelDiagnostics`

class object from lm.- y
Included to match the generic. Not used.

- plot
A logical value whether or not to plot the results or simply return the graaphical objects.

- ask
A logical whether to ask before changing plots. Only applies to interactive environments.

- ncol
The number of columns to use for plots. Missing by default which means individual plots are created. If specified, plots are put together in a grid.

- ...
Included to match the generic. Not used.

## Examples

```
testm <- stats::lm(mpg ~ hp * factor(cyl), data = mtcars)
md <- modelDiagnostics(testm, ev.perc = .1)
#> Warning: singularity problem
#> Warning: tiny diagonals replaced with Inf when calling blkfct
#> Warning: singularity problem
#> Warning: tiny diagonals replaced with Inf when calling blkfct
plot(md)
plot(md, ncol = 2)
## clean up
rm(testm, md)
```