The R round method is one of the R Math function, which is used to round an individual number, or an expression to the nearest value. In this article we will show you, How to use round in R Programming language with example.
R round syntax
The basic syntax of the round in R Programming language is as shown below:
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# Round numeric_Expression to nearest value round(numeric_Expression) # Round the decimal points to specified integer_value round(numeric_Expression, integer_value) |
Numeric_Expression: It can be a numeric value or a valid numerical expression.
- If the numeric_Expression is positive or Negative numeric value, round function will return the nearest ceiling value.
- If the numeric_Expression is not a number (NaN) then round will return NaN.
- If the numeric_Expression is positive or negative infinity, function will return the same
R round Function example 1
In this program, We are going to return the round values of different data and display the output
R CODE
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# round in R example # Use round Function on Positive Value round(45.56) round(525.4999) # Use round Function on Negative values round(-140.825) round(-13.23) # round Value of an Expression round(140.986 + 122.456 - 220.4233 + 12.67) # round Function on vectors number <- c(-22.26, 456.94, 2.50, 2.51, -36.49, -813.111 , -525.123) round(number) |
OUTPUT
R round Function example 2
In this program, We are going to round the decimal values of different data and display the output
R CODE
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# round in R example # Use round Function on Positive Value round(45.565, 0) # Round decimal points to 1 round(525.419299, 1) round(525.419299, 2) # Use round Function on Negative values round(-140.825, 2) round(-13.239, 2) # round Value of an Expression round((140.986 + 122.4563256 - 220.4233 + 12.67), 2) # round Function on vectors number <- c(-22.26, 456.94, 2.50, 2.591, -36.49, -813.111 , -525.123) round(number, 1) |
OUTPUT
R round Function example 3
In this program, We are going to apply the round function on List data and display the output. For this example, we are using the airquality data set provided by R
R CODE
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# round in R example #Dataset We are going to use airquality # Applying round function on Airquality Wind Data round(airquality$Wind) round(airquality$Wind, 1) |
OUTPUT
R round Function Example 4
The round function in R programming also allows you to round the numeric values in a database, or table columns. In this example, We are going to round all the records present in [Standard Cost], and [Sales Amount] columns. For this, We are going to use the below shown csv data
TIP: Please refer, R Read CSV Function article to understand the steps involved in importing csv file.
R CODE
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# round in R example getwd() #Datat We are going to use product <- read.csv("Product_Data.csv", TRUE, sep = ",") print(product) # Applying round function on Standard Cost, and Sales Amount round(product$StandardCost) round(product$StandardCost, 1) round(product$SalesAmount) round(product$SalesAmount, 2) |
OUTPUT
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