How to Fix: could not find function “%>%” in R
Last Updated :
28 Feb, 2022
In this article, we are going to see how to fix, could not find function “%>%” in R Programming Language. The pipe operator %>% was introduced to decrease time and to improve the readability and maintainability of code. This error can occur while don’t have loaded or installed the R package.
Method 1: Using magrittr packages
Producing the Error
To reproduce the error message “could not find function “%>%”” in the R. For the example, Here we are using the “%>%” operator to get a sum of sqrt.
Output:
Error in 1:8 %>% sum %>% sqrt: could not find function "%>%"
Traceback:
How to fix
It can be only fixed using related packages(magrittr)
R
library ( "magrittr" )
1:8 %>% sum %>% sqrt
|
Output:
6
Method 2: Using dplyr Package
Producing the Error
To reproduce the error message “could not find function “%>%”” in the R. For the example, Here we are using the “%>%” operator to group_by() function followed by summarise() function with an appropriate action to perform.
R
df <- data.frame (Sub = c ( 'Math' , 'Math' , 'Phy' ,
'Phy' , 'Phy' , 'Che' , 'Che' ),
Marks = c (8, 2, 4, 9, 9, 7, 1),
Add_on = c (3, 1, 9, 4, 7, 8, 2))
df %>%
group_by (Sub) %>%
summarise_at ( vars (Marks),
list (name = sum))
|
Output:
Error in df %>% group_by(Sub) %>% summarise_at(vars(Marks), list(name = sum)): could not find function “%>%”
How to fix
It can be only fixed using related packages(dplyr)
R
df <- data.frame (Sub = c ( 'Math' , 'Math' , 'Phy' ,
'Phy' , 'Phy' , 'Che' , 'Che' ),
Marks = c (8, 2, 4, 9, 9, 7, 1),
Add_on = c (3, 1, 9, 4, 7, 8, 2))
library (dplyr)
df %>%
group_by (Sub) %>%
summarise_at ( vars (Marks),
list (name = sum))
|
Output:
Sub name
Che 8
Math 10
Phy 22
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