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Cluster heatmaps? - Visokio Forums
Cluster heatmaps?
  • VoteVote Up0Vote Down     sdhayes December 17, 2009 11:18AM
    Hi, do you have any plans to add heatmaps beyond what is currently available from the tile view?
    Examples would be
    http://www.peltarion.com/doc/images/SOM_example_Cows_dataset.png
    http://journals.prous.com/journals/dof/20042910/html/df291043/images/Winkler_f3.jpg
    http://www.piyabute.com/download/images/kohonen/Figure3.jpg
    http://www.biocompsystems.com/products/imodel/heatmap.gif
    http://www.pymvpa.org/_images/ex_som.png
  • 3 Comments
  •     steve December 18, 2009 12:23PM
    Stuart, you shouldn't be using the Tile view for these kinds of plots. Try the Graph view's "Heat map" in the marker options dialog. You can adjust the grid size using the marker size slider.

    You can also use the same feature in the Map view to overlay heatmaps using lat/lon coordinates over a map to see (e.g.) population density.

    Box plots are something we plan to do in future, although we have had limited demand for them.
  •     sdhayes January 4, 2010 2:59PM
    Steve,

    I cannot seem to get anything like a "heatmap" to be produced
    I have created 3 columns with 10 rows
    each column is filled with random numbers between 1-100
    All I seem to be able to do is get a 2-dimensional chart with large square markers - nothing like the examples above?

    Could you please send me an iok file with an example?


    Thanks
    Stuart
  •     steve January 7, 2010 7:45AM
    Stuart,

    Go to Marker Options. Depending on which version you are using, this will be a button on the toolbar or in the View tools menu.

    Choose "Heat map". Change the marker size slider to configure the heatmap grid size.

    Close the marker options. Use colour-by in the main toolbar or view toolbar to show intensity.

    This is available in both the map and the graph view.

    Steve

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