Parallel coordinates

'chart-types-parallel': () => ({
  rows: [], config: {},
  foot: ['one axis per measure, one line per instrument', 'coloured by desk, so a pattern per desk shows'],
  mount: mountGridCharts({
    rows: book(800), columns: bookCols, columnsPer: 1, chartHeight: 360,
    chartTypeModules: ['parallel'],
    charts: [{ type: 'parallel', columns: ['price', 'bid', 'ask', 'volume'], colourBy: 'desk', title: 'Instruments across four measures' }],
  }),
}),