Cloud and Rain, No Box in JavaScript

// Raw observations per group (Box-Muller Gaussian; Math.random is seeded by
// the sample template).
function sample(mean, sd, n) {
  var points = []
  for (var k = 0; k < n; k++) {
    var u1 = Math.random(),
      u2 = Math.random()
    var g = Math.sqrt(-2 * Math.log(u1)) * Math.cos(2 * Math.PI * u2)
    points.push(Math.round((mean + g * sd) * 10) / 10)
  }
  return points
}

var options = {
  series: [
    {
      name: 'Response time',
      data: [
        { x: 'Control', points: sample(340, 55, 180) },
        { x: 'Variant A', points: sample(305, 40, 180) },
        { x: 'Variant B', points: sample(285, 62, 180) },
      ],
    },
  ],
  chart: {
    type: 'raincloud',
    height: 440,
  },
  title: {
    text: 'Response times by cohort',
  },
  subtitle: {
    text: 'Half-density cloud + raw observations; box lane turned off',
  },
  plotOptions: {
    bar: {
      distributed: true,
    },
    violin: {
      // Hide the five-number box: its lane reflows to the cloud, so the rain
      // sits directly against the density baseline (no dead strip).
      box: {
        show: false,
      },
    },
  },
  legend: {
    show: false,
  },
  yaxis: {
    title: {
      text: 'Response time (ms)',
    },
  },
}

var chart = new ApexCharts(document.querySelector('#chart'), options)
chart.render()