Hi Nicolas,

Thanks very much.  Just out of curiosity I'd be interested in understanding how did you do it.  My (non expert) impression is that using properties to override column formulas isn't a good idea.  It seems to me it would be more natural to apply cell formulas AFTER all column formulas were applied, so that each cell would be simply the output of the formula defining it.

Best,
Ruy

On Nov 15, 2017 14:42, "Nicolas Goaziou" <mail@nicolasgoaziou.fr> wrote:
Hello,

Ruy Exel <ruyexel@gmail.com> writes:

> The following is very simple org-mode spreadsheet in which the cells in the
> second column show the triple of the corresponding cell in the first column
> due to the "column formula" in its TBLFM row $2=3*$1;N. However the third
> row (actually row @4) is an exception because of the "cell formula"
> @4$2=string("Exception") which expectedly overrides the above column
> formula.
>
> |--------+-----------|
> | Number |    Triple |
> |--------+-----------|
> |      1 |         3 |
> |      2 |         6 |
> |      3 | Exception |
> |      4 |        12 |
> |--------+-----------|
>
> #+TBLFM: $2=3*$1::@4$2=string("Exception")
>
> So all is well. Below you will find a copy of the above table, except that,
> after copying, I have deleted the exceptional formula affecting cell @4$2.
>
> |--------+-----------|
> | Number |    Triple |
> |--------+-----------|
> |      1 |         3 |
> |      2 |         6 |
> |      3 | Exception |
> |      4 |        12 |
> |--------+-----------|
>
> #+TBLFM: $2=3*$1
>
> One would expect that, after updating this table with C-u C-c *, or C-c C-c
> in the TBLFM line, the exceptional value in cell @4$2 would revert to the
> triple of '3', but instead the string "Exception" stays put.

Fixed. Thank you.

Regards,

--
Nicolas Goaziou