# trunc in R: How to Use trunc() Function in R

The trunc() method in R is truncate, which rounds to the nearest integer in the direction of 0. The trunc() function truncates the values in the decimal places.

## trunc() in R

The trunc() is a built-in R function that rounds the values to zero decimal points. It takes data that can be either a vector, string, or data frame and returns the converted integer number.

The trunc() method can convert float to int values.

### Syntax

``trunc(data)``

### Parameters

The trunc() function takes data as an input string, vector, or data frame.

### Return value

The trunc() method returns reduced the input values to zero decimal place and converted it into an int number.

### Example

``trunc(2119.1921)``

#### Output

`` 2119``

You can see from the output that the trunc() method reduced the 2119.1921 values to zero decimal place and converted it into an int number.

## Calculating trunc() value of Negative values in R

To calculate the trunc value of the negative value, use the trunc() method and pass the negative value as a parameter.

``trunc(-2119.1921)``

#### Output

`` -2119``

## Applying trunc() method to a Vector

To create a Vector in R, use the c() function or ( : ) colon operator. Apply the trunc() method to a Vector.

``````rv <- c(1.1, 21.19, 1.9, 11, -46)
trunc(rv)``````

#### Output

`` 1 21 1 11 -46``

You can see that the trunc() function has returned the int values with zero decimal points.

## Applying trunc() function to the data frame column

To create a data frame, use the data.frame() function. In this example, we will use the mtcars dataset, apply the trunc() function to the wt column, and see the output.

``````data(mtcars)
cat("\n")
cat("Trunc values of wt column", "\n")
cat("\n")
trunc(mtcars\$wt)``````

#### Output

``````Trunc values of wt column

 2 2 2 3 3 3 3 3 3 3 3 4 3 3 5 5 5 2 1 1 2 3 3 3 3 1 2 1 3 2 3 2``````

You can see that the trunc() function has reduced/returned all the values present in the mtcars dataset with zero decimal points.

That is it for the trunc() method in R.