> I have noticed a discrepancy between is.list() and is(x, “list”)
There's a similar problem with inherits().
On R 3.5.3:
> f = function () 1
> class (f) = "f"
> is.function (f)
[1] TRUE
> inherits (f, "function")
[1] FALSE
I didn't check what happens with:
> class (f) = c ("f", "function")
However, they should have the same result, regardless.
> Is this discrepancy intentional?
I hope not.
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