You can also use this method to rename data frame column by index in R.Ĭolnames(my_dataframe) <- c('c1','c2','c3','c4','c5') Actually, colnames() is used to set or get the names of a data frame. You can also have the columns with a list to rename.Ĭolnames() is another method available in R which can also be used to rename all column names (list with column names).
![rename in r rename in r](https://community.rstudio.com/uploads/default/optimized/2X/d/dada3bbaab9dd511fd940302d40a574be4411f82_2_1024x218.png)
In the below example we are assigning a vector of names to data frame column names. Here c() returns a one-dimensional vector with the column names and names() is used to set the names to a data frame. You can also use this method to rename data frame column by index.įollowing is the syntax of the names() to use column names from the list. Names() is the method available in R which can be used to change all column names. The above example changes back the column names from c1 to id, c2 to pages and c3 to name. To load a library use library("data.table").
![rename in r rename in r](https://www.marsja.se/wp-content/uploads/2020/11/how_to_rename_levels_of_a_factor_in_R_dplyr.jpg)
Once installation completes, load the data.table library in order to use this setnames() method.
#RENAME IN R INSTALL#
Like dplyr, data.table is a third-party library hence, in order to use data.table library, you need to first install it by using install.packages('data.table'). Setnames() is a function from data.table library that can be used to change multiple columns at a time in the R dataframe. When you use %>% operator, the functions we use after this will be applied to the dataframe to the left of the operator.Ĥ. At a time it will change single or multiple column names. Names(my_dataframe) % is used to load the renamed column names to the dataframe. # Example 2 - Rename multiple columns by index
![rename in r rename in r](https://media-blog.cdnandroid.com/wp-content/uploads/sites/9/2016/12/19120111/File-rename.jpg)
# Example 1 - Rename multiple columns by name