You are returning a string value when you should be returning a number
value. If you want to format the data, you can return it as an object with
"v" (value) and "f" (formatted value) properties:
calc: function (dt, row) {
var number = dt.getValue(row, 2);
var formatter = newgoogle.visualization.NumberFormat({fractionDigits:2});
return {
v: number,
f: formatter.formatValue(number)
};
}
On Wednesday, September 18, 2013 9:22:12 AM UTC-4, khamosh wrote:
>
> hello every body
> I have a ComboChart with ControlWrapper, I want in my chart only I see
> the the figure on two decimal places, so I use formatter, this my code
>
> view: {
>
> columns: [
>
> {
>
> //transform the numbers into strings, so the steppedArea
> series will work
>
> type: "string",
>
> calc: function (dt, row) {
>
> var date = dt.getValue(row, 2);
>
> var formatter =
> newgoogle.visualization.DateFormat({pattern:"dd/MM/yyyy
> HH:mm"});
>
> return formatter.formatValue(date);
>
> console.log(calc, typeof (calc));
>
> }
>
> },
>
> {
>
> type:"string",
>
> calc: function (dt, row) {
>
> var number = dt.getValue(row, 2);
>
> var number = dt.getValue(row, 3);
>
> var number = dt.getValue(row, 4);
>
> var formatter =
> newgoogle.visualization.NumberFormat({fractionDigits:2});
>
> console.log(calc);
>
> return formatter.formatValue(number);
>
> }
>
> },
>
> 6,7]
>
> }
>
>
> but I have this error :
>
> One or more participants failed to draw()×
> All series on a given axis must be of the same data type×
>
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