Rounding off to the ceiling or floor value in R Programming – trunc() Function

trunc() function in R Language is used to return the largest integer that is smaller than or equal to x (i.e : rounds downs the nearest integer). trunc() function behaves as a ceiling function for negative number and floor function for positive number.

Syntax: trunc(x)

Parameter:
x: Numeric value to be rounded off

Example 1:

# R program to calculate trunc value

# Using trunc() method
answer1 <- trunc(3.4)
answer2 <- trunc(-3.4)
answer3 <- trunc(3.6)
answer4 <- trunc(-3.6)

print(answer1)
print(answer2)
print(answer3)
print(answer4)

Output:

3
-3
3
-3

Example 2:

# R program to calculate trunc value

# Using trunc() method
answer1 <- trunc(c(1.5, 2.6, -3, -3.4))

print(answer1)

Output:

1  2 -3 -3