There's no built-in way to use column ID's to get data from the DataTable
(you have to parse the table to find the index of a column with the given
ID; not difficult, but it is an extra step). If your cumulative function
can take a parameter for the column number, then you can use a method like
this to create your calculated columns:
dataview.setColumns([1, 2, {
calc: function (dt, row) {
return sum(dt, row, 1);
},
type: 'number',
label: 'Foo :: Total Distance'
}, {
calc: function (dt, row) {
return sum(dt, row, 2);
},
type: 'number',
label: 'Bar :: Total Distance'
}]);
On Tuesday, August 13, 2013 3:56:00 PM UTC-4, James Patrick-Evans wrote:
>
> Copying the playground code messed up, here's the full version:
> http://pastebin.com/q8Rxhut0
>
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