R How to Remove Multiple Variables from Data Frame with dplyr Package (Example Code)
In this R programming tutorial you’ll learn how to remove several variables of a data frame based on functions of the dplyr package.
Example Data
data(iris) # Load iris head(iris) # First lines of iris # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 4.9 3.0 1.4 0.2 setosa # 3 4.7 3.2 1.3 0.2 setosa # 4 4.6 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa |
data(iris) # Load iris head(iris) # First lines of iris # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 4.9 3.0 1.4 0.2 setosa # 3 4.7 3.2 1.3 0.2 setosa # 4 4.6 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa
Example: Dropping Multiple Columns with select & one_of Functions of dplyr Package
install.packages("dplyr") # Install dplyr package library("dplyr") # Load dplyr |
install.packages("dplyr") # Install dplyr package library("dplyr") # Load dplyr
remove_columns <- c("Sepal.Length", # These variables will be removed "Petal.Length", "Species") |
remove_columns <- c("Sepal.Length", # These variables will be removed "Petal.Length", "Species")
iris_new <- iris %>% # select & one_of functions select(- one_of(remove_columns)) head(iris_new) # First lines of updated data # Sepal.Width Petal.Width # 1 3.5 0.2 # 2 3.0 0.2 # 3 3.2 0.2 # 4 3.1 0.2 # 5 3.6 0.2 # 6 3.9 0.4 |
iris_new <- iris %>% # select & one_of functions select(- one_of(remove_columns)) head(iris_new) # First lines of updated data # Sepal.Width Petal.Width # 1 3.5 0.2 # 2 3.0 0.2 # 3 3.2 0.2 # 4 3.1 0.2 # 5 3.6 0.2 # 6 3.9 0.4