CODEWITHSUNDEEP
rdplyr
Eisen
Eisen

Reputation: 1897

Comparing function to variable in R

I have the following code which generates the error

Error in a == dplyr::mutate : comparison (1) is possible only for atomic and list types

a <- dplyr::mutate
a == dplyr::mutate

How can I check that this is TRUE in R?

Upvotes: 1

Views: 19

Answers (2)

Konrad
Konrad

Reputation: 18585

You may also want to compare function body1 if you insist on using ==:

body(a) == body(dplyr::mutate)
# [1] TRUE

1The body function access and manipulates function body (documentation).

Upvotes: 0

aldo_tapia
aldo_tapia

Reputation: 1228

You can use identical() function:

The safe and reliable way to test two objects for being exactly equal. It returns TRUE in this case, FALSE in every other case.

With your example:

a <- dplyr::mutate
identical(a,dplyr::mutate)
# [1] TRUE
identical(a,dplyr::select)
# [1] FALSE

Upvotes: 2

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