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Re: [Orgmode] I do not understand this error


From: Cecil Westerhof
Subject: Re: [Orgmode] I do not understand this error
Date: Thu, 12 Jul 2007 08:34:25 +0200

Op do, 12-07-2007 te 08:07 +0200, schreef Cecil Westerhof:
> I have the following table:
>         
> |---+------------+---------+---------+--------+--------+-------+-------------------+----------+--------|
>         |   |      datum | kmstand | prijs/l | liters | dagen  | prijs | km's 
>              | prijs/km |   km/l |
>         
> |---+------------+---------+---------+--------+--------+-------+-------------------+----------+--------|
>         | # |            |  155111 |         |        |        |       |      
>              |          |        |
>         | # | 2007-07-09 |  156146 |   102.2 |  62.25 | #ERROR | 63.62 | 1035 
>              |    6.147 | 16.627 |
>         | # | 2007-09-11 |    6953 |    97.8 |  47.75 | #ERROR | 46.70 | 
> Verkeerde kmstand |          |        |
>         | # |            |         |         |        | #ERROR |       |      
>              |          |        |
>         
> |---+------------+---------+---------+--------+--------+-------+-------------------+----------+--------|
>         #+TBLFM: $6='(if (and (not (check-if-after-hline)) (nz @-1$2) (nz 
> $2)) (-  (time-to-days (org-read-date t t "$2")) (time-to-days (org-read-date 
> t t "@-1$2"))) "");S::$7='(if (and (nz $4) (nz $5)) (format "%.2f" (/ (* $4 
> $5) 100)) "");N::$8='(if (and (nz @-1$3) (nz $3)) (if (> $3 @-1$3) (- $3 
> @-1$3) (if (not (check-if-after-hline)) "Verkeerde kmstand" "")) 
> "");N::$9='(if (and (nz $8) (nz $7)) (format "%.3f" (/ (* $7 100) $8)) 
> "");N::$10='(if (and (nz $8) (nz $5)) (format "%.3f" (/ $8 $5)) "");N

I should not use 'nz', but 'not' and 'equal'. This gives:
        
|---+------------+---------+---------+--------+-------+-------+-------------------+----------+--------|
        |   |      datum | kmstand | prijs/l | liters | dagen | prijs | km's    
          | prijs/km |   km/l |
        
|---+------------+---------+---------+--------+-------+-------+-------------------+----------+--------|
        | # |            |  155111 |         |        |       |       |         
          |          |        |
        | # | 2007-07-09 |  156146 |   102.2 |  62.25 |    -3 | 63.62 | 1035    
          |    6.147 | 16.627 |
        | # | 2007-09-11 |    6953 |    97.8 |  47.75 |    64 | 46.70 | 
Verkeerde kmstand |          |        |
        | # |            |         |         |        |       |       |         
          |          |        |
        
|---+------------+---------+---------+--------+-------+-------+-------------------+----------+--------|
        #+TBLFM: $6='(if (and (not (check-if-after-hline)) (not (equal @-1$2 
"")) (not (equal $2 ""))) (-  (time-to-days (org-read-date t t (concat $2))) 
(time-to-days (org-read-date t t (concat @-1$2)))) "");S::$7='(if (and (nz $4) 
(nz $5)) (format "%.2f" (/ (* $4 $5) 100)) "");N::$8='(if (and (nz @-1$3) (nz 
$3)) (if (> $3 @-1$3) (- $3 @-1$3) (if (not (check-if-after-hline)) "Verkeerde 
kmstand" "")) "");N::$9='(if (and (nz $8) (nz $7)) (format "%.3f" (/ (* $7 100) 
$8)) "");N::$10='(if (and (nz $8) (nz $5)) (format "%.3f" (/ $8 $5)) "");N

The only problem is that in the second element of 'dagen' there stands
'-3'. It looks like it that '(not (equal @-1$2 ""))' is not correctly is
evaluated.

-- 
Cecil Westerhof <address@hidden>





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