[Orgmode] Re: evaluating rows or columns in org-table
Kene Meniru <[EMAIL PROTECTED]> writes:
> | | | names | grade 1 | grade 2 | grade 3 | Total | |
> Letter grade |
>
> |---+---++-+-+-+---+---+--|
> | # | 1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | 1 | C
> |
> | # | 2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | 2 | B
> |
> | # | 3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | 3 | B
> |
> | # | 4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | 4 | B
> |
> #+TBLFM: $7=($4+$5+$6)/3;%.2f
>
> Sample letter grade calculation:
> 90-100 = A
> 80-89 = B
> 70-79 = C
> 60-69 = D
> 0-59 = F
>
> I am deeply sorry if this has been addressed before here. I have
> searched but could not find any reference.
> I am a teacher and have been using org-mode in combination with noweb
> as a class manager. I also use moodle and blackboard but I like to
> keep my lecture notes and student grades local on my machine. I
> typically have the above table for student grades (usually
> substantially more than that). I am able to calculate many things like
> averages, etc., but would like to have letter grades and "best
> performing" comments by the students doing as well.
>
> Starting with letter grades, is there a way I can evaluate the Total
> column and assign letter grades as shown above? Thanks
It's a bit ugly but I think it works...
| | | names | grade 1 | grade 2 | grade 3 | Total | | Letter grade |
|---+---++-+-+-+---+---+--|
| # | 1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | 1 | A|
| | || | | | | | |
| # | 2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | 2 | A|
| | || | | | | | |
| # | 3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | 3 | A|
| | || | | | | | |
| # | 4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | 4 | B|
| | || | | | | | |
#+TBLFM:
$7=($4+$5+$6)/3;%.2f::$9=if($7<60,string("F"),if($7<70,string("D"),if($7<80,string("C"),if($7<90,string("B"),string("A")
There might be a better/cleaner way to do this.
This also seems to work:
#+TBLFM:
$7=($4+$5+$6)/3;%.2f::$9=if($7<60,F,if($7<70,D,if($7<80,C,if($7<90,B,A
-Bernt
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[Orgmode] Re: evaluating rows or columns in org-table
Bernt Hansen <[EMAIL PROTECTED]> writes:
> Kene Meniru <[EMAIL PROTECTED]> writes:
>
>> | | | names | grade 1 | grade 2 | grade 3 | Total | |
>> Letter grade |
>>
>> |---+---++-+-+-+---+---+--|
>> | # | 1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | 1 | C
>> |
>> | # | 2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | 2 | B
>> |
>> | # | 3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | 3 | B
>> |
>> | # | 4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | 4 | B
>> |
>> #+TBLFM: $7=($4+$5+$6)/3;%.2f
>>
>> Sample letter grade calculation:
>> 90-100 = A
>> 80-89 = B
>> 70-79 = C
>> 60-69 = D
>> 0-59 = F
>>
>> I am deeply sorry if this has been addressed before here. I have
>> searched but could not find any reference.
>> I am a teacher and have been using org-mode in combination with noweb
>> as a class manager. I also use moodle and blackboard but I like to
>> keep my lecture notes and student grades local on my machine. I
>> typically have the above table for student grades (usually
>> substantially more than that). I am able to calculate many things like
>> averages, etc., but would like to have letter grades and "best
>> performing" comments by the students doing as well.
>>
>> Starting with letter grades, is there a way I can evaluate the Total
>> column and assign letter grades as shown above? Thanks
>
> It's a bit ugly but I think it works...
>
> | | | names | grade 1 | grade 2 | grade 3 | Total | | Letter grade
> |
> |---+---++-+-+-+---+---+--|
> | # | 1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | 1 | A
> |
> | | || | | | | |
> |
> | # | 2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | 2 | A
> |
> | | || | | | | |
> |
> | # | 3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | 3 | A
> |
> | | || | | | | |
> |
> | # | 4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | 4 | B
> |
> | | || | | | | |
> |
> #+TBLFM:
> $7=($4+$5+$6)/3;%.2f::$9=if($7<60,string("F"),if($7<70,string("D"),if($7<80,string("C"),if($7<90,string("B"),string("A")
>
> There might be a better/cleaner way to do this.
>
> This also seems to work:
>
> #+TBLFM:
> $7=($4+$5+$6)/3;%.2f::$9=if($7<60,F,if($7<70,D,if($7<80,C,if($7<90,B,A
Here's my attempt at fixing the student rank
| | Rank | names | grade 1 | grade 2 | grade 3 | Total | Letter grade |
|---+--++-+-+-+---+--|
| # |1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | A|
| # |3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | A|
| # |2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | A|
| # |4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | B|
#+TBLFM:
$7=($4+$5+$6)/3;%.2f::$8=if($7<60,F,if($7<70,D,if($7<80,C,if($7<90,B,A::@2$2=1::[EMAIL
PROTECTED]
If you sort the table by the total column descending to get the rank
If you sort the resulting table like this:
1) Position cursor on any total value
2) M-x org-table-sort-lines
3) N (for reverse numeric sort)
Then you need to set the ranking data sequentially starting from 1 on
row 1.
So... the final table looks like this:
-Bernt
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[Orgmode] Re: evaluating rows or columns in org-table
Sorry that last post was unfinished. Here's my attempt at fixing the student rank | | Rank | names | grade 1 | grade 2 | grade 3 | Total | Letter grade | |---+--++-+-+-+---+--| | # |1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | A| | # |3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | A| | # |2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | A| | # |4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | B| #+TBLFM: $7=($4+$5+$6)/3;%.2f::$8=if($7<60,F,if($7<70,D,if($7<80,C,if($7<90,B,A::@2$2=1::[EMAIL PROTECTED] You can sort the table by the total column descending to get the rank. If you sort the resulting table like this: 1) Position cursor on any total value 2) M-x org-table-sort-lines 3) N (for reverse numeric sort) Then update the Rank column with C-u C-u C-c C-c anywhere in the table the rank numbers are recomputed starting from 1 on the first row. I hope your blank lines aren't too important because sorting puts them all at the bottom of the table. Does that do what you want? -Bernt ___ Emacs-orgmode mailing list Remember: use `Reply All' to send replies to the list. Emacs-orgmode@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-orgmode
Re: [Orgmode] Re: evaluating rows or columns in org-table
On Wed, Jul 30, 2008 at 9:16 AM, Bernt Hansen <[EMAIL PROTECTED]> wrote: > Sorry that last post was unfinished. > > Here's my attempt at fixing the student rank > > | | Rank | names | grade 1 | grade 2 | grade 3 | Total | Letter > grade | > > |---+--++-+-+-+---+--| > | # |1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | A > | > | # |3 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | A > | > | # |2 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | A > | > | # |4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | B > | > #+TBLFM: > $7=($4+$5+$6)/3;%.2f::$8=if($7<60,F,if($7<70,D,if($7<80,C,if($7<90,B,A::@2$2=1::[EMAIL > PROTECTED] > > You can sort the table by the total column descending to get the rank. > > If you sort the resulting table like this: > > 1) Position cursor on any total value > 2) M-x org-table-sort-lines > 3) N (for reverse numeric sort) > > Then update the Rank column with C-u C-u C-c C-c anywhere in the table > the rank numbers are recomputed starting from 1 on the first row. > > I hope your blank lines aren't too important because sorting puts them > all at the bottom of the table. The blank lines do also pose a problem in different approach, one which will make use of vector functions in calc. If you allow for no empty lines and one extra line toward the end of table, this also can do the computation. | | Rank | names | grade 1 | grade 2 | grade 3 | Total | Letter grade | |---+--++-+-+-+---+--| | # |1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | A | | # |2 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | A | | # |3 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | A | | # |4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | B | |---+--++-+-+-+---+--| #+TBLFM: $2=find(rsort(@[EMAIL PROTECTED] $7),$7)::$7=($4+$5+$6)/3;%.2f::$8=if($7<60,F,if($7<70,D,if($7<80,C,if($7<90,B,A > > Does that do what you want? > > -Bernt > > > ___ > Emacs-orgmode mailing list > Remember: use `Reply All' to send replies to the list. > Emacs-orgmode@gnu.org > http://lists.gnu.org/mailman/listinfo/emacs-orgmode > ___ Emacs-orgmode mailing list Remember: use `Reply All' to send replies to the list. Emacs-orgmode@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-orgmode
Re: [Orgmode] Re: evaluating rows or columns in org-table
"Gabriel Peters" <[EMAIL PROTECTED]> writes: > The blank lines do also pose a problem in different approach, one which will > make use of vector functions in calc. If you allow for no empty lines and one > extra line toward the end of table, this also can do the computation. > > | | Rank | names | grade 1 | grade 2 | grade 3 | Total | Letter grade | > |---+--++-+-+-+---+--| > | # |1 | student 01 | 91.80 | 96.40 | 97.00 | 95.07 | A| > | # |2 | student 03 | 92.00 | 95.14 | 97.00 | 94.71 | A| > | # |3 | student 02 | 88.78 | 89.15 | 98.00 | 91.98 | A| > | # |4 | student 04 | 84.00 | 74.62 | 88.00 | 82.21 | B| > |---+--++-+-+-+---+--| > #+TBLFM: $2=find(rsort(@[EMAIL PROTECTED]),$7)::$7=($4+$5+$6)/3;%.2f::$8=if($7 > <60,F,if($7<70,D,if($7<80,C,if($7<90,B,A Cool :) I learn something new everyday! And this doesn't require that you sort the entries first to get it right - so I like Gabriel's solution better. This way you are free to sort the table anyway you like and the data is still correct. -Bernt ___ Emacs-orgmode mailing list Remember: use `Reply All' to send replies to the list. Emacs-orgmode@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-orgmode
