length 0 array documentation about docs HOT 5 OPEN

I believe this is stated further down on the page you link, https://mc-stan.org/docs/reference-manual/vector-matrix-array-expressions.html#no-empty-array-expressions

from docs.

Thanks for posting the issue, @spinkney. We should definitely fix this.

from docs.

Ah, very nice!

from docs.

Is there anything more you think we should be saying in that section?

from docs.

Is there anything more you think we should be saying in that section?

I think I would've noticed this better if it was in the part Rectangular array expressions only instead of it's own section. Though this could just be how I read sections, finding the relevant part and then switching back to what I'm doing, instead of reading through the docs carefully.

The only other thing to add is @nhuurre's suggestion that it is also possible to create empty array's on the fly as rep_array({1.0}, 0).

from docs.