R Error in apply – dim(X) must have positive length (2 Examples)
In this article you’ll learn how to handle the “Error in apply : dim(X) must have a positive length” in the R programming language.
Creation of Example Data
data(iris) # Iris as example data frame 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) # Iris as example data frame 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 1: Replicate the Error Message in apply(data) : dim(X) must have a positive length
apply(iris$Sepal.Length, 2, sum) # Never use the apply function for vectors/columns # Error in apply(iris$Sepal.Length, 2, sum) : # dim(X) must have a positive length |
apply(iris$Sepal.Length, 2, sum) # Never use the apply function for vectors/columns # Error in apply(iris$Sepal.Length, 2, sum) : # dim(X) must have a positive length
Example 2: Fix the Error Message in apply(data) : dim(X) must have a positive length
sum(iris$Sepal.Length) # Applying sum function to column vector # [1] 876.5 |
sum(iris$Sepal.Length) # Applying sum function to column vector # [1] 876.5
Further Resources & Related Tutorials
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