Exchange Whole Column of Data Frame in R (Example Code)

In this article you’ll learn how to exchange a whole variable of a data frame in the R programming language.

Creation of Example Data

data(iris)                           # Example data
head(iris)
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1            1         3.5          1.4         0.2  setosa
# 2            2         3.0          1.4         0.2  setosa
# 3            3         3.2          1.3         0.2  setosa
# 4            4         3.1          1.5         0.2  setosa
# 5            5         3.6          1.4         0.2  setosa
# 6            6         3.9          1.7         0.4  setosa

Example: Transform Values in Column

iris$Sepal.Length <- 1:nrow(iris)    # Exchange values
head(iris)                           # Display head of updated data frame
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1            1         3.5          1.4         0.2  setosa
# 2            2         3.0          1.4         0.2  setosa
# 3            3         3.2          1.3         0.2  setosa
# 4            4         3.1          1.5         0.2  setosa
# 5            5         3.6          1.4         0.2  setosa
# 6            6         3.9          1.7         0.4  setosa

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