Scatter Plot Projection Rank

One of the nicest and surely most useful visualization widgets in Orange is Scatter Plot. The widget displays a 2-D plot, where x and y-axes are two attributes from the data.

2-dimensional scatter plot visualization
2-dimensional scatter plot visualization

 

Orange 2.7 has a wonderful functionality called VizRank, that is now implemented also in Orange 3. Rank Projections functionality enables you to find interesting attribute pairs by scoring their average classification accuracy. Click ‘Start Evaluation’ to begin ranking.

Rank Projections before ranking is performed.
Rank Projections before ranking is performed.

 

The functionality will also instantly adapt the visualization to the best scored pair. Select other pairs from the list to compare visualizations.

Rank Projections once the attribute pairs are scored.
Rank Projections once the attribute pairs are scored.

 

Rank suggested petal length and petal width as the best pair and indeed, the visualization below is much clearer (better separated).

Scatter Plot once the visualization is optimized.
Scatter Plot once the visualization is optimized.

 

Have fun trying out this and other visualization widgets!

  • MD

    Where do I find the scatter widget? The only widgets I have under the Visualize category are “Attribute Statistics”, “Mosaic Display”, “Sieve Diagram”, and “Venn Diagram”.

    • Marko Toplak

      Hi. Which operating system are you using and how did you install
      Orange? Do you perhaps see a widget category “VisualizeQt”? Are the
      missing widgets there? Thanks, Marko

    • Blaz Zupan

      Scatter Plot is in Visualize pane. If you are not seeing it, there was a problem in installing some libraries that come with Orange and are associated with Qt. Please reinstall. [This question has already been answered on time, but there is a problem with Disqus plugin to WP that does not show a reply. Hope it works now.]