[sailwave] Need some caculating help...

Hi!
Sorry about my bad explanation.

The Laser Class are responsible for ranking of the sailors. They use the formula below:

("Number of competitors" - finishingposition + 1) * Category = rank pts.

Finishing position is actually the rank in a weekend race.

I got some help from Mike Butterfield, to make the Category work. But still: It's not good enough, because of userfriendlieness.... It's not logical to me...
So, here is a closer description from me, and the solution from Mike:

···

-----------------------------------------------------------------------
Hi!
I've been looking for a solution for the Norwegian Laser club, to have a
ranking system like:

("Number of competitors in race" - finishingposition + 1) * Category = rank
pts.

Category varies from regatta to regatta, and can be 1 to 4.

This points out to be a "high point system" because if you wins a regatta
with 20 boats and weight/category=4, you should have (20-1+1)*4= 80pts.
Number 2 should have (20-2+1)*4=76 pts

So, I tried to use "custom high point defined by a list of expressions" set
to: s-p+1. Then I set weight in each regatta, but a high weight gave a low
point..?? So, I found out that for High point systems, SW divides points
with the weight.... And multiplies for low point systems... Is this correct?
I tought it should have been the other way around.... Anyway, I could have
solved my problem if I was alowed to divide by 0.25 i.e. set the weighting
to 0.25. But, I was not allowed to make the weighting lower than 1..?

------------------------------------------------------------------------

Use the expression you have and multiply by 24.

Then set the weighting of the races Edit Race

to 24 for factor 1
12 factor 2
8 factor 3
6 factor 4

Mike Butterfield
----------------------------------------------------------------------

You may look at it, if you agree with me!

Anyway, here in Norway it now seems like SW's popularity is growing. Both the Optimist club, Laser Club and Europe club are looking at SW. I'trying to help as good as I can....

regards, martin

--
Martin Bølgen
97517102/37251906
Grimstad seilforening
--

Hi Martin,

I think you've come across the weighting bug in Sailwave; it'll be fixed for
the next release. Agree re: usbility of the expressions; they are very
powerful but very unfriendly; unfortunately a common mix. Let me know if
you have ideas for improvement. My usual approach is to get something in
there that works and may be fairly 'low-level' and then iterate towards a
more elegant user interface...

Regards,
Colin
www.sailwave.com

···

-----Original Message-----
From: Martin B�lgen [mailto:martin@seilforening.no]
Sent: 11 April 2005 09:43
To: sailwave@yahoogroups.com
Subject: RE: [sailwave] Need some caculating help...

Hi!
Sorry about my bad explanation.

The Laser Class are responsible for ranking of the sailors. They
use the formula below:

("Number of competitors" - finishingposition + 1) * Category = rank pts.

Finishing position is actually the rank in a weekend race.

I got some help from Mike Butterfield, to make the Category work.
But still: It's not good enough, because of userfriendlieness....
It's not logical to me...
So, here is a closer description from me, and the solution from Mike:

-----------------------------------------------------------------------
Hi!
I've been looking for a solution for the Norwegian Laser club, to have a
ranking system like:

("Number of competitors in race" - finishingposition + 1) *
Category = rank
pts.

Category varies from regatta to regatta, and can be 1 to 4.

This points out to be a "high point system" because if you wins a regatta
with 20 boats and weight/category=4, you should have (20-1+1)*4= 80pts.
Number 2 should have (20-2+1)*4=76 pts

So, I tried to use "custom high point defined by a list of
expressions" set
to: s-p+1. Then I set weight in each regatta, but a high weight
gave a low
point..?? So, I found out that for High point systems, SW divides points
with the weight.... And multiplies for low point systems... Is
this correct?
I tought it should have been the other way around.... Anyway, I
could have
solved my problem if I was alowed to divide by 0.25 i.e. set the
weighting
to 0.25. But, I was not allowed to make the weighting lower than 1..?

------------------------------------------------------------------------

Use the expression you have and multiply by 24.

Then set the weighting of the races Edit Race

to 24 for factor 1
12 factor 2
8 factor 3
6 factor 4

Mike Butterfield
----------------------------------------------------------------------

You may look at it, if you agree with me!

Anyway, here in Norway it now seems like SW's popularity is
growing. Both the Optimist club, Laser Club and Europe club are
looking at SW. I'trying to help as good as I can....

regards, martin

--
Martin Bxlgen
97517102/37251906
Grimstad seilforening
--

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