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7 changes: 4 additions & 3 deletions docs/src/formula.md
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Expand Up @@ -335,9 +335,10 @@ true

It is also possible to create a `FunctionTerm` programmatically, matching the
behavior of what happens when a call to a function like `log` is encountered
inside the `@formula` macro, although it takes a bit of care to get right. In
the future we may add more convenience methods to "lift" functions into the
"term domain" but for now they must be constructed manually, like so:
inside the `@formula` macro. Functions with unambiguous method dispatch (in particular:
functions with a single input argument) can be constructed manually as follows; functions
with multiple input arguments, or otherwise more complicated method dispatch,
require a different approach which is explained in the [extensions section](@ref Internals-and-extending-the-formula-DSL).

```jldoctest 1
julia> log_term(t::AbstractTerm) = FunctionTerm(log, [t], :(log($(t))))
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