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

Example: Dropping Multiple Columns with select & one_of Functions of dplyr Package

install.packages("dplyr")              # Install dplyr package
library("dplyr")                         # Load dplyr
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

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