Unable to reproduce example in JOSS paper

[dmbates]

I am reviewing https://github.com/openjournals/joss-reviews/ #2598 and I am unable to reproduce the first example in the paper

> library(set6)

-----------------------------
	set6 v0.1.8

Get started:	?set6
Changelog:	set6News()
-----------------------------

> a <- Set$new(1,2,3)
> a
{1, 2, 3} 
> a$contains(1)
[1] TRUE
> a$contains(pi)
[1] FALSE
> a$contains(1, pi, "a")
[1] TRUE
> a$contains(1, "a")
Error in if (all) { : argument is not interpretable as logical

Have I misunderstood the example? (My R programming is a bit rusty so my apologies if I misunderstood)

If it matters this is on Ubuntu 20.04 with
Package: r-base-core
Version: 4.0.2-1.2004.0

[RaphaelS1]

Sorry about this, this is a typo in the paper, it should read:

a <- Set$new(1, 2, 3)
a$contains(c(1, "a"))

So in your examples it should be

a <- Set$new(1,2,3)
a
a$contains(1)
a$contains(pi)
a$contains(c(1, pi, "a"))
a$contains(c(1, "a"))

or

a$contains(list(1, pi, "a"))
a$contains(list(1, "a"))