Hi Ken,
setColumnProperties should be used to set multiple properties of a single
column, and as such will not work for your case, since 'type' is not a
property. You may find the documentation for setColumnProperties here:
https://developers.google.com/chart/interactive/docs/reference#DataTable_setColumnProperties
An example might be:
data.setColumnProperties(3, {role: 'tooltip', html: true});
Keep in mind that this method overrides all the properties that you have
set previously.
On Mon Dec 08 2014 at 9:49:39 AM Ken Burkhalter <[email protected]>
wrote:
> In order to use the 'certainty' feature of line chart plotting I was
> starting to use the following approach to set the chart DataTable
> properties after the input data array was converted to a data table.
>
> data.setColumnProperty(2, 'role', 'certainty');
> data.setColumnProperty(2, 'type', 'boolean');
> data.setColumnProperty(4, 'role', 'certainty');
> data.setColumnProperty(4, 'type', 'boolean')
> .......
>
> Since there are a number of such columns to set, I discovered and would
> think that the "setColumnProperties" method would be more compact,
> however, despite hours of searching for documentation or examples of that
> approach I have been able to find virtually nothing.
>
> Can someone provide a syntax example of how the above multiple individual
> column properties can be combined using the *setColumnProperties*
> approach?
>
> Thanks. :-)
>
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