[O] column formulas: Row descriptor -1 used in line ### leads outside table

Anyone have suggestions about how i can have a column-formula refer to value in previous row, but ignore the row before the first line? Something like this: | 1 | 4 | | | 2 | 7 | | | 3 | 1 | | #+TBLFM: $2=random(10)::$3=(@-1$2)-$2 Evaluating this returns an error: "Row d

Re: [O] column formulas: Row descriptor -1 used in line ### leads outside table

> "N" == Nick Dokos writes: N> Set the cell in the first line explicitly with a field formula N> (or just a value): it overrides the column formula. Thanks.