Calculate Cumulative Sum of a Numeric Object in R Programming – cumsum() Function

The cumulative sum can be defined as the sum of a set of numbers as the sum value grows with the sequence of numbers.

cumsum() function in R Language is used to calculate the cumulative sum of the vector passed as argument.

Syntax: cumsum(x) 

Parameters:

x: Numeric Object

Example 1:

Python3

# R program to illustrate
# the use of cumsum() Function

# Calling cumsum() Function
cumsum(1:4)
cumsum(-1:-6)

Output:

[1]  1  3  6 10
[1]  -1  -3  -6 -10 -15 -21

Example 2:

Python3

# R program to illustrate
# the use of cumsum() Function

# Creating Vectors
x1 <- c(2, 4, 5, 7)
x2 <- c(2.4, 5.6, 3.4)

# Calling cumsum() Function
cumsum(x1)
cumsum(x2)

Output:

[1]  2  6 11 18
[1]  2.4  8.0 11.4