exerciseB2.R

# Exercise B2

# run this, then do tasks below
set.seed(1234) 
x1 <- rnorm(5)
x2 <- rnorm(20, mean=0.5)


# Select the elements of x1 that are less than 0


# Select the elements of x2 that are greater than 1


# Select the elements of x1 between 0 and 1


# Trim x2 to the first 5 elements (select first 5 and save back to x2)


# Select the last element of x1; hint: use length()  


# Select all but the third and fifth elements of x1