Scatter

js

{
  chartType: 'scatter', // alias: 'bubble'
  seriesData: [
    ['', 'Metric X', 'Metric Y', 'Size', 'Group'],
    ['A', 10, 15, 8, 'G1'],
    ['B', 14, 11, 12, 'G1'],
    ['C', 8, 20, 6, 'G2'],
  ],
  title: { visible: true, text: 'Scatter' },
  subtitle: { visible: false, text: '' },
}

Scatter does not use isDataTransposed: true the way bar/line layouts do.

Sample

Live chart and copy-paste HTML: Scatter sample.