Graphics

data = c(78 ,79 ,84 ,85 ,85 ,86 ,87 ,89 ,89 ,90 ,90 ,92 ,92 ,93 ,95 ,95 ,96 ,97 ,97 ,98)
hist(data)

You can use the layout function in order to have more than one histogram by page.

Example:

# 4 histograms in a 2x2 matrix
layout(matrix(c(1,2,3,4), 2, 2, byrow = TRUE))

Ggplot

See Ggplot - Histogram (geom_histogram, geom_freqpoly): Histogram:

• Geom: bar
• Stat: bin
• Scale: linear
• Coordinate system: Cartesian