Create a histogram

Histograms are used to show the shape of the distribution of a continuous (numeric) variable. The lattice function to create histograms is histogram(). The two main arguments are a formula, used to specify which variable to plot, and a data frame containing that variable. For example, to plot a histogram of the x column of a data frame, d, you would type the following:

histogram(~ x, data = d)

For this exercise, you will use the built-in dataset airquality, which gives daily measurements of ozone concentration, wind speed, temperature and solar radiation in New York City from May to September of 1973.

Call library() to load the lattice package.
Draw a histogram of ozone concentration.
- Ozone concentration is stored in the Ozone variable.
- The data argument is the airquality data frame.

Take Hint (-30 XP)

Exercise

Create a histogram

Instructions