16.5 Histograms

A histogram graphically summarizes the distribution of the data.

• A simple histogram

# Vector of 200 random values from the normal distribution
x <- rnorm(200)

# Plot histogram
hist(x)

• Add parameters:
  • border: color of bar borders
  • breaks: number of bars the data is divided into
  • cex.main: size of title
  • cex.lab: size of axis labels

hist(x,
    border="blue",
    breaks=50,
    main="Histogram",
    xlab="",
    cex.main=2.5,
    cex.lab=2)