Set values of node labels in Sankey diagram

[William]

I am trying to create a simple Sankey diagram showing flows between two sets of nodes, and would like the two sets to have the same names. However, this isn't allowed (it brings up a "Cycle found in rows" error), so I add "2" to the names of the nodes in the second set, like so:

     function drawChart() {

        var data = new google.visualization.DataTable();

        data.addColumn('string', 'From');

        data.addColumn('string', 'To');

        data.addColumn('number');

        data.addRows([

['foo', 'foo2', 6],

['bar', 'bar2', 4],

['foo', 'bar2', 6],

['bar', 'foo2', 4]

        ]);

        var chart = new google.visualization.Sankey(document.getElementById('sankey_basic'));

        chart.draw(data);

      }

However, I don't want the node labels to say "foo2" and "bar2" -- I just want them to say "foo" and "bar". In some cases in Google Visualization API you can solve this problem with {v: 'foo2', f: 'foo'} and {v: 'bar2', f: 'bar'}, but that doesn't work here. Is there any way I can do this?

[Daniel LaLiberte]

Hi William,

Your idea of specifying the data with the v and f properties should work, but this chart was not implemented with that in mind.  This is a bug which should not be difficult to fix.   There is no alternative at this time, sorry.

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Daniel LaLiberte

dlaliberte@Google.com   Cambridge MA