data_structures.R

# Vectors

height <- c(58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)

# Access an element of a vector

height[4]
# Access a range of  elements of a vector

height[4:7]

seq(0,100,by=10)

# Matrices

m <- matrix(1:20, nrow=5, ncol=4)

 m[10]

m[3,4]

m[3:5]