Using variable names in pie chart data

[Mario Lopes]

I am trying to create a pie chart where rather than the data being an actual number, it is the name of a variable as I am doing mathematical operations to the raw data from a database.

var data = new google.visualization.DataTable();
        data.addColumn('string', 'item');
        data.addColumn('number', 'value');
        data.addRows([
          ['A', a],
          ['B', b],
          ['C', c],
          ['D', d],
          ['E', e],
          ['F', f],
          ['G', g]
        ]);

The only time that I can display the graph is when a, b, c, d, e, f, and g are actual numerical values. Unfortunately, I have no idea of knowing those values as they are based on the data from the database. Any help is greatly appreciated. Thanks.

[P-A]

I have the same problem, if anyone have an anwser !  

[Daniel LaLiberte]

This is a very basic JavaScript question, and it is very easy to ensure that the variables have values before they are used.  E.g.

var a = 123;

var b = 456;

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

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

        data.addColumn('number', 'value');

        data.addRows([

          ['A', a],

          ['B', b],

...

So it seems there must be something more to the question.  Perhaps you should give a more complete example of what you are doing.

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Daniel LaLiberte

dlaliberte@Google.com   5CC, Cambridge MA