Home/ Questions/Is there any solution for the $ operator is invalid for atomic vectors error?
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Noah Leblond
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Asked: 2022-05-11T18:12:04+00:00 In:

Is there any solution for the $ operator is invalid for atomic vectors error?

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I am new to R and searching a solution for “$ operator is invalid for atomic vectors”. It seems it doesn’t work as expected when I used some suggestions before. This is the script that I ran:

x<-c(1,2)
 x
 names(x)<- c("bob","ed")
 x$ed

The error I’m getting is below:

Error in x$ed : $ operator is invalid for atomic vectors

Please give me the solution for this issue.

operator is invalid
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2 Answers

  1. Best Answer

    There is no mystery here, you’re trying to access vector elements by using $ operator, but this operator does not support to do that. You could simply use [] to access to vector elements instead. For your example, could you try to run as follow?

    x["ed"]
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  2. You can access the $ help file (see ?"$")

    Let’s now check if x works recursively

    > is.recursive(x)
[1] FALSE

    A recursive object is a list-like structure. A vector is not recursive. It is an atomic object. Let’s see.

    > is.atomic(x)
[1] TRUE

    You will get an error when you apply $ to vectors (non-recursive objects). Use [ instead.

    > x["ed"]
ed 
 2

    getElement can also be used

    > getElement(x, "ed")
[1] 2
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