Re: Jfreechart Visualization And/OR any other package?

I don't think we have a plug-in for using JFreeChart in the Explorer. For
visualizing ROC curves, recall-precision curves, etc., the Explorer just
has WEKA's native ThresholdCurve tool for plotting. Right-click on the
corresponding entry for your experiment run in the "Result list" panel of
the "Classify" tab of the Explorer to get to this tool.

Kappa and f-measure aren't currently supported as statistics in the
ThresholdCurve tool.

One really nice interactive visualization tool is the cost-benefit analysis
tool. It will often be more useful in practice than plotting a plain ROC
curve:

  https://wiki.pentaho.com/display/DATAMINING/Cost+Benefit+Analysis

If you are willing to do some coding, you could install the RPlugin to plot
using R in the Explorer. Or you could install wekaPython, to plot with
matplotlib (for example). You would have to save the data from the
ThresholdCurve tool first and then load it back into the Explorer to use
these facilities on the threshold curve data.

If you are willing to work entirely in R, you could also try using ROCR in
R as described in this post:


https://weka.8497.n7.nabble.com/Summarising-repeats-of-10-fold-cross-validation-td37369.html

Cheers,
Eibe

On Sun, May 23, 2021 at 11:15 AM mcbenly <[email protected]> wrote:

> Hi,
>
> I have jfreechartOffscreenRenderer installed. And I guess I have three
> questions:
>
> 1) Can I view Jfreechart produced visualization using "Explorer"?
>
> 2) At the moment using Jfreechart in KnowledgeFlow and it works fine. It's
> connected through ModelPerformanceChart (Render: JFreeChart Chart Renderer)
> and ImageViewer. Can I visualize other than ROC (TPR and FPR)? i.e.,
> F-Measure/Kappa ? I am not sure where I need to define these parameteres.
>
> 3) Is there any other package for visualization? which can be used through
> Weka GUI ? and doesn't require much of hard coding?
>
>
> Thanks,
>
>
>
>
>
> --
> Sent from: https://weka.8497.n7.nabble.com/
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