Salaries for engineering graduates 10 years after graduation
A data frame with 51 observations on the following 2 variables:
salary 10 years after graduation in thousands of dollars
one of three different engineering universities
Ugarte, M. D., Militino, A. F., and Arnholt, A. T. (2008) Probability and Statistics with R. Chapman & Hall/CRC.
boxplot(salary ~ university, data = Engineer, horizontal = TRUE)# Trellis Approach bwplot(university ~ salary, data = Engineer)