# First, let's create two vectors for comparison.
> x2 <- c(1:5)
> y2 <- c(1, 2, -7, 4, 5).

# Let's verify if the elements in x2 are greater or equal to 3.
# R returns a TRUE/FALSE value for each element (in order).
> x2 >= 3
[1] FALSE FALSE TRUE TRUE TRUE

# Let's see if the elements of x2 are exactly equal to those of y2.
> x2 == y2
[1] TRUE TRUE FALSE TRUE TRUE

# Is 3 not equal to 4? Of course!
> 3 != 4
[1] TRUE

# Let's see which values in x2 are greater than 2 but smaller than 5.
# You have to write x2 twice.
# If you write x2 > 2 & < 5, you will get an error message.
> x2 > 2 & x2 < 5
[1] FALSE FALSE TRUE TRUE FALSE