This function displays a histogram, a box plot, a strip chart
and a density curve on the same plot.

## Arguments

- x
a numeric variable

- nbins
number of bins in the histogram

- bw
bandwidth of the density curve

## Value

The number of bins of the histogram and the bandwidth of the density
curve are (invisibly) returned in a list.

## Examples

```
(mf_distr(rnorm(1000)))
#> $bw
#> [1] 0.2832403
#>
#> $nbins
#> [1] 10
#>
mf_distr(rbeta(1000, .6, 7))
mf_distr(rbeta(1000, 5, .6))
```