Re: table formula, empty field, duration

[Bastien <bzg@gnu.org>]

Hi Kristof,

Kristof Ralovich <kristof@ralovich.hu> writes:

> it appears to me that the concept of "empty field" is not defined for
> time durations, or it is quite different to how it is defined for
> numbers (using org-mode 9.1.9).
>
> In the first table, the empty row @6 produces an empty field for the sum
> ($5, first formula), that vmean is able to "skip" (second formula) and
> gives the expected result 8.25 (=33/4).
>
> #+TBLNAME: works_with_numbers
> | h | start | end | h | sum |    h | h |
>
> |---+-------+-----+---+-----+------+---|
> |   |    08 |  18 |   |  10 |      |   |
> |   |    11 |  15 |   |   4 |      |   |
> |   |    09 |  20 |   |  11 |      |   |
> |   |    10 |  18 |   |   8 |      |   |
> |   |       |     |   |     |      |   |
> |---+-------+-----+---+-----+------+---|
> |   |       |     |   |  33 | 8.25 |   |
>
> #+TBLFM: $5=if(typeof($3-$2)==12, string(""), $3-$2);E::@>$5=vsum(@2..@-1);
> #+TBLFM: @>$6=vmean(@2$5..@-1$5);

Can you provide a more minimal example?

The following table works correctly here (maint and master):

| mean1 | mean2 |
|-------+-------|
| 08:00 | 08:00 |
| 09:00 | 09:00 |
| 00:00 |       |
|-------+-------|
| 05:40 | 08:30 |
#+TBLFM: @5$1=vmean(@2..@-1);U
#+TBLFM: @5$2=vmean(@2..@-1);U

So I suspect this is something wrong with your first formula:

> #+TBLFM: $5=if(typeof($3-$2)==12, string(""), $3-$2);E

Let me know if you manage to nail down something more precise.

Thanks,

-- 
 Bastien