Broadcast macro @. "escape" from it

New to Julia
1

Dear all,
I like the @. macro, but is there a way to partly escape it? Use case is a situation where in an expression 9 out of 10 operations need the . and one operation does not.

@. sum(a + b + c + d)

where a to d are vectors and I want the sum of the sum them, so sum should not be broadcast.

I could imagine one just inverts the notation, i.e. . then means “do not broadcast, but that did not work”.
Thanks!

2 
help?> @.
  @. expr

  Convert every function call or operator in expr into a "dot call" (e.g. convert f(x) to f.(x)), and convert every assignment in expr to a "dot assignment" (e.g. convert += to .+=).

  If you want to avoid adding dots for selected function calls in expr, splice those function calls in with $. For example, @. sqrt(abs($sort(x))) is equivalent to sqrt.(abs.(sort(x))) (no
  dot for sort).

  (@. is equivalent to a call to @__dot__.)

  Examples
  ≡≡≡≡≡≡≡≡≡≡

  julia> x = 1.0:3.0; y = similar(x);
  
  julia> @. y = x + 3 * sin(x)
  3-element Vector{Float64}:
   3.5244129544236893
   4.727892280477045
   3.4233600241796016

So perhaps try

@. $sum(a + b + c + d)
3 Likes
3

Thanks - should have read the help indeed :angel: