Error Bars with eastwood

A discussion forum for the Eastwood Chart Servlet.

Error Bars with eastwood

Postby maxime » Wed Oct 08, 2008 9:16 pm

Is there a way to do a bar or line plot with error bars ?
The Google Chart API does not implement it, so if we were to implement
it, we would need to figure out what is the best way to encode the
dataset
example :
chd=51,53,63,62,76,87
err=3,3,2,5,6,4
'chd' would express means, and err standard deviations.
From looking at the Javadoc of JFreechard it seems that the engine
implements it using the
org.jfree.chart.renderer.xy.XYErrorRenderer
so it would seem that it should be pretty easy to implement.
I'd be willing to contribute this to eastwood, especially if someone
knowledgeable with Jfreechart tells me that it is trivial..
Any advice will be appreciated.
maxime
 
Posts: 1
Joined: Wed Oct 08, 2008 9:08 pm

Re: Error Bars with eastwood

Postby tkurk » Thu Apr 30, 2009 9:59 pm

did you ever complete an implementation of errors bars within the google charts api?

thanks!
Tom
tkurk
 
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Joined: Thu Apr 30, 2009 9:57 pm


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