[visualization-api] isStacked only working with option true

[Danielle O.]

Hello,
I am trying to created a Percentage Stacked chart with the *isStacked *option 
'percent', however anything other than the *true *option is not recognised.

I am using: https://jsfiddle.net/api/post/library/pure/ and changing var 
options to include *isStacked*:

      var options = {
        title: 'Motivation and Energy Level Throughout the Day',
        focusTarget: 'category',
        hAxis: {
          title: 'Time of Day',
          format: 'h:mm a',
          viewWindow: {
            min: [7, 30, 0],
            max: [17, 30, 0]
          },
          textStyle: {
            fontSize: 14,
            color: '#053061',
            bold: true,
            italic: false
          },
          titleTextStyle: {
            fontSize: 18,
            color: '#053061',
            bold: true,
            italic: false
          }
        },
        vAxis: {
          title: 'Rating (scale of 1-10)',
          textStyle: {
            fontSize: 18,
            color: '#67001f',
            bold: false,
            italic: false
          },
          titleTextStyle: {
            fontSize: 18,
            color: '#67001f',
            bold: true,
            italic: false
          }
        }
      };


to:

      var options = {
        *isStacked: 'percent',*
        title: 'Motivation and Energy Level Throughout the Day',
        focusTarget: 'category',
        hAxis: {
          title: 'Time of Day',
          format: 'h:mm a',
          viewWindow: {
            min: [7, 30, 0],
            max: [17, 30, 0]
          },
          textStyle: {
            fontSize: 14,
            color: '#053061',
            bold: true,
            italic: false
          },
          titleTextStyle: {
            fontSize: 18,
            color: '#053061',
            bold: true,
            italic: false
          }
        },
        vAxis: {
          title: 'Rating (scale of 1-10)',
          textStyle: {
            fontSize: 18,
            color: '#67001f',
            bold: false,
            italic: false
          },
          titleTextStyle: {
            fontSize: 18,
            color: '#67001f',
            bold: true,
            italic: false
          }
        }
      };

The option *isStacked: true *returns a Stacked version of the chart.
The option *isStacked: 'absolute' *does not work either which according to 
the documentation is functionally equivalent of *isStacked: true*

What am I missing?

Thanks,
Danielle

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