Torsten Wagner <torsten.wagner@gmail.com> writes:

> Hi,
>
> I wrote a python code block which should translate scores into marks.
> The python code seems to work. It takes two arguments. The reached score
> (out of 100) as well as how many scores where needed to pass. Starting from
> that, higher grades are calculated on a even base.
>
> I want to call the python block for each row using the sbe macro
> However, this results in an error and I can't see why
>
> | Name | ID   | 1.1 | 1.2 | 1.3 | 1.4 | 2.1 | 2.2 | 2.3 | 2.4 | 2.5 | Extra
> | Sum | Mark |
> |---------------------+------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-------+-------+--------|
> | Name1 |     111111 |  10 |  10 |  10 |  12 |  12 |   3 |   4 |  12 |   3
> |     2 |    78 | #ERROR |
> | Name2 |     22222 |     |     |     |     |     |     |     |     |
> |       |     0 | #ERROR |
> | Name3 |     33333 |     |     |     |     |     |     |     |     |
> |       |     0 | #ERROR |
> #+TBLFM: $14='(sbe score2mark (score $13) (passscore 50))
>
> #+name: score2mark(score, passscore)
> #+begin_src python
> def score2mark(score, passscore):
>     marklist = [5, 4.3, 4, 3.7, 3.3, 3, 2.7 ,2.3, 2, 1.7, 1.3, 1]
>     step=(100-passscore)/(len(marklist)-1)
>     if  score < passscore:
>            return marklist[0]
>     for mark in marklist[1:]:
>            if round(passscore) <= score <= round(passscore+step):
>                return mark
>            else:
>                   passscore += step
>     return -1
> #+end_src
>
> Any idea what I am doing wrong? I tried different versions with
> "score2mark" some additional brackets etc. However, no luck yet.
>
> Thanks for help
>
> Torsten

-- 
Eric Schulte
http://cs.unm.edu/~eschulte