How to use rename_with() In R Language

Rename multiple column at once using rename() function

rename_with() is used to change the case of the column.

uppercase: To convert to uppercase, the name of the dataframe along with the toupper is passed to the function which tells the function to convert the case to upper.

Syntax:

rename_with(dataframe,toupper)

Where, dataframe is the input dataframe and toupper is a keyword that converts all columns to upper

lowercase: To convert to lowercase, the name of the dataframe along with the tolower is passed to the function which tells the function to convert the case to lower.

Syntax:

rename_with(dataframe,tolower)

where dataframe is the input dataframe and tolower is a keyword that converts all columns to lower.

Example: R program to convert columns to upper and lower

R

# load the library 
library(dplyr) 
  
# create dataframe with 3 columns id,name  
# and address 
data1=data.frame(id=c(1,2,3,4,5,6,7,1,4,2), 
                   
                 name=c('sravan','ojaswi','bobby', 
                        'gnanesh','rohith','pinkey', 
                        'dhanush','sravan','gnanesh', 
                        'ojaswi'), 
                   
                 address=c('hyd','hyd','ponnur','tenali', 
                           'vijayawada','vijayawada','guntur', 
                           'hyd','tenali','hyd')) 
  
# convert all columns to upper 
rename_with(data1,toupper) 
print("==============") 
  
# convert all columns to lower 
rename_with(data1,tolower)