If you want a given level of precision (ie, 3 decimal places), use the Number Format ( http://code.google.com/apis/chart/interactive/docs/reference.html#numberformatter) on columns to set your precision for the tooltips, and use the h/vaxis.format option to set the precision for the axes (ex, for bar charts: http://code.google.com/apis/chart/interactive/docs/gallery/barchart.html#Configuration_Options ).
If you always want to display the same number of digits, regardless of the precision of the digits (ie, 3 digits in any place: .123, 3.45, 67.8), then you can write a function that takes your data as an input and creates a formatted string version of each value with the appropriate number of digits. Pass the formatted value back to the dataTable object with the #setFormattedValue ( http://code.google.com/apis/chart/interactive/docs/reference.html#DataTable) method (or process your data before creating the dataTable object and build the dataTable by passing the {v: value, f: 'formatted value'} object to each cell). The axis values are auto-calculated and aside from using the axis format option there is nothing you can do to control the precision. -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-visualization-api/-/Nww-eqX68KwJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
