Error Message in R: incorrect number of dimensions (2 Examples)

In this tutorial, I’ll illustrate how to handle the error message “incorrect number of dimensions” in the R programming language.

Creation of Exemplifying Data

data(iris)                         # 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 1: Replicating the Error Message – incorrect number of dimensions

iris$Sepal.Length[2:5, 2:5]        # Try to use two dimensions for vector
# Error in iris$Sepal.Length[2:5, 2:5] : incorrect number of dimensions

Example 2: Solving the Error Message – incorrect number of dimensions

iris$Sepal.Length[2:5]             # Vector has only one dimension

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