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