Adjusting the bin numbers

Let's take our first steps away from the default number of bins with our histograms. We'll start by building a histogram of the percentage of the speed a driver is traveling over the limit for each citation. This is calculated as ((speed - speed_limit) / speed_limit)*100.

Plot percentage over the speed limit as a histogram with the number of bins set to 40. While you're at it, set the alpha to 0.8. You're entirely on your own with this one, no scaffolding.

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Visualization Best Practices in R

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Anleitung zur Übung

Load md_speeding into ggplot() object.
Add a histogram geometry to plot.
Set x aes()thetic to percentage_over_limit.
Adjust settings for 40 bins and set alpha as 0.8.

Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

# Load md_speeding into ggplot
___ +
  # add a geom_histogram with x mapped to percentage_over_limit
    ___(
        ___
        ___     # set bin number to 40
        ___)    # reduce alpha to 0.8

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