Functions on vectors

In addition to the functions and operators that we've seen for numerical values, there are some specific functions for vectors, such as the following:

• Sum of the elements present in a vector:

sum(x)
## [1] 23

• Product of elements in a vector:

prod(x)
## [1] 360

• Length of a vector:

length(x)
## [1] 4

• Modifying a vector using the <- operator:

x
## [1] 9 8 1 5
x[1]<-22
x
## [1] 22 8 1 5