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Q: need algorithm that allows to remove non-critical points from chart dataset ( No Answer,   2 Comments )
Question  
Subject: need algorithm that allows to remove non-critical points from chart dataset
Category: Computers > Algorithms
Asked by: observer_ip-ga
List Price: $20.00
Posted: 02 Jul 2006 21:44 PDT
Expires: 01 Aug 2006 21:44 PDT
Question ID: 742904
Need reference to algorithm (Java or C#) that allows to decrease
amount of points in chart dataset without losing much of
statistical/visual validity

For example dataset may have 5000 data points, but I need to reduce it to 500 (10%)
Answer  
There is no answer at this time.

Comments  
Subject: Re: need algorithm that allows to remove non-critical points from chart dataset
From: gahlawat-ga on 14 Jul 2006 23:50 PDT
 
i can tel you the way

1. determine the point which are necessary & which can't be removed.
2. then find rest of the points.
3. remove these points.

thank you
Subject: Re: need algorithm that allows to remove non-critical points from chart dataset
From: frodo2366-ga on 24 Jul 2006 20:29 PDT
 
Can't give you source code, but.....
Take a random subset and if it is a large enough sample you will be
right 19 times out of 20 +/- 3%...

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