R Error in List – attempt to select less than one element (2 Examples)

In this tutorial, I’ll show how to reproduce and handle the error message “attempt to select less than one element in get1index real” in R programming.

Example Data

example_list <- list(c("ggg", "a", "y"),    # Example list in R
                     "Z",
                     10:5,
                     letters[1:4])
example_list                                # Display example list in RStudio console
# [[1]]
# [1] "ggg" "a"   "y"  
# 
# [[2]]
# [1] "Z"
# 
# [[3]]
# [1] 10  9  8  7  6  5
# 
# [[4]]
# [1] "a" "b" "c" "d"

Example 1: Replicating the Error Message – attempt to select less than one element

example_list[[0]]                           # Selecting the 0th element
# Error in example_list[[0]] : 
#   attempt to select less than one element in get1index <real>

Example 2: Debugging the Error Message – attempt to select less than one element

example_list[[1]]                           # Selecting the 1st element
# [1] "ggg" "a"   "y"

Related Tutorials & Further Resources

Furthermore, you may have a look at the related articles of www.data-hacks.com:

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