Condense Column Values of a Data Frame in R Programming summarise() Function (original) (raw)

Last Updated : 15 Jul, 2025

**summarise()** function in R Language is used to condense various values of column of a data frame to one value.

Syntax: summarise(x, expr)Parameters: x: Data Frameexpr: Operation to condense data

Example 1:

Python3 1== `

R program to condense data

of a data frame

Loading library

library(dplyr)

Create a data frame

d <- data.frame( name = c("Abhi", "Bhavesh", "Chaman", "Dimri"),
age = c(7, 5, 9, 16),
ht = c(46, NA, NA, 69), school = c("yes", "yes", "no", "no") )

Calculating min age

summarise(d, min_age = min(age))

Calculating max age

summarise(d, max_age = max(age))

`

Output:

min_age 1 5 max_age 1 16

Example 2:

Python3 1== `

R program to condense data

of a data frame

Loading library

library(dplyr)

Create a data frame

d <- data.frame( name = c("Abhi", "Bhavesh", "Chaman", "Dimri"),
age = c(7, 5, 9, 16),
ht = c(46, NA, NA, 69), school = c("yes", "yes", "no", "no") )

Calculating mean of age

summarise(d, mean = mean(age))

Calculating median of age

summarise(d, med = median(age))

`

Output:

mean 1 9.25 med 1 8