區間條形圖

預覽圖

設定值

• 資料源

[{
  country:profession: '巴西兩年制副學士學位',
  population:highest: 18203110000,
  minimum: 23000,
  mean: 56636
}, {
  country:profession: '印尼執法與救火',
  population:highest: 23489120000,
  minimum: 18000,
  mean: 66625
}, {
  country:profession: '美国教育學',
  population:highest: 29034125000,
  minimum: 24000,
  mean: 72536
}, {
  country:profession: '印度心理學',
  population:highest: 104970130000,
  minimum: 22500,
  mean: 75256
}, {
  country:profession: '中国計算機科學',
  population:highest: 131744131000,
  minimum: 23000,
  mean: 77031
}]

• 內距

40,20, 60,80, 60,50, 70150

• 前置處理函數 Transform

數據加工（map）

function callback(row) {
  row.range = [row.minimum, row.highest];
  return row;
}

• 圖 Geom

柱狀圖（ interval ）

• 極坐標 Coord