MSG (version 0.7)

quake6: Earth quakes from 1973 to 2010

Description

The time, location and magnitude of all the earth quakes with magnitude being greater than 6 since 1973.

References

https://d.cosx.org/d/101510

Examples

# NOT RUN {
data(quake6)
library(ggplot2)
qplot(year, month, data = quake6) + stat_sum(aes(size = ..n..)) + 
    scale_size(range = c(1, 10))
# }