# R in Action (2nd ed): Chapter 1
# Introduction to R
#-----------------------------------------------------

# A sample R session
# q() is commented out so you don't accidently exit

# A two variable example
age <- c(1,3,5,2,11,9,3,9,12,3)
weight <- c(4.4,5.3,7.2,5.2,8.5,7.3,6.0,10.4,10.2,6.1)
mean(weight)
sd(weight)
cor(age,weight)
plot(age,weight)
# q()


# Working with a new package
help.start()
install.packages("vcd")
help(package="vcd")
library(vcd)
help(Arthritis)
Arthritis
example(Arthritis)
# q()