R Assign Value if Element is Between Two Numbers (Example Code)
This tutorial explains how to replace the values in a certain range by a new value in R programming.
Example Data
data(iris) # Loading some example data head(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) # Loading some example data head(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: Assigning Certain Number to Elements Between Two Values
iris_new <- iris # Replicating data object iris_new$Sepal.Length[iris_new$Sepal.Length > 4 & # Replacing range with new value iris_new$Sepal.Length < 5] <- 100 head(iris_new) # Showing head of iris_new in RStudio console # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 100.0 3.0 1.4 0.2 setosa # 3 100.0 3.2 1.3 0.2 setosa # 4 100.0 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa |
iris_new <- iris # Replicating data object iris_new$Sepal.Length[iris_new$Sepal.Length > 4 & # Replacing range with new value iris_new$Sepal.Length < 5] <- 100 head(iris_new) # Showing head of iris_new in RStudio console # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 100.0 3.0 1.4 0.2 setosa # 3 100.0 3.2 1.3 0.2 setosa # 4 100.0 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