动态月明智的数据集

Question

我正在尝试为我的图表创建月份数据数组。结合每个月的所有销售和购买价值

谁能帮助我获得预期的输出，那将非常有帮助。我附上了 fiddle，我用我的预期输出尝试创建图表

如果可能，请指导我一些 java 对我有用的脚本函数

var mainData = [
  {
    "date": "2017-01-03",
    "month": "JAN",
    "sales": "200",
    "purchase": "1000"
  },
  {
    "date": "2017-01-18",
    "month": "JAN",
    "sales": "800",
    "purchase": "2500"
  },
  {
    "date": "2017-01-22",
    "month": "JAN",
    "sales": "400",
    "purchase": "2100"
  },
  {
    "date": "2017-02-20",
    "month": "FEB",
    "sales": "40",
    "purchase": "90"
  },
  {
    "date": "2017-02-28",
    "month": "FEB",
    "sales": "970",
    "purchase": "2100"
  },
  {
    "date": "2017-02-29",
    "month": "FEB",
    "sales": "3300",
    "purchase": "2900"
  },
  {
    "date": "2017-03-20",
    "month": "MAR",
    "sales": "600",
    "purchase": "900"
  }
]


// Expected Output - how can I achieve this

{
  "data": [
    {
      "data": [
        {
          "event": "sales",
          "inventory": [
            {
              "value": "200"   //Jan
            },
            {
              "value": "40"   //Feb
            },
            {
              "value": "600"  //Mar
            }
          ]
        },
        {
          "event": "purchase",
          "inventory": [
            {
              "value": "1000"
            },
            {
              "value": "90"
            },
            {
              "value": "900"
            }
          ]
        }
      ]
    },
    {
      "data": [
        {
          "event": "sales",
          "inventory": [
            {
              "value": "800"
            },
            {
              "value": "970"
            }
          ]
        },
        {
          "event": "purchase",
          "inventory": [
            {
              "value": "2500"
            },
            {
              "value": "2100"
            }
          ]
        }
      ]
    },
    {
      "data": [
        {
          "event": "sales",
          "inventory": [
            {
              "value": "400"
            },
            {
              "value": "3300"
            }
          ]
        },
        {
          "event": "purchase",
          "inventory": [
            {
              "value": "2100"
            },
            {
              "value": "2900"
            }
          ]
        }
      ]
    }
  ]
}

Answer 1

你可以使用这个功能：

function transformData(data) {
    return {
        data: data.reduce ( (acc, item) => {
            let i = acc.months.get(item.month) || 0;
            acc.data[i] = acc.data[i] || {
                data: [{
                    event: "sales",
                    inventory: []
                }, {
                    event: "purchase",
                    inventory: []
                }]
            };
            acc.data[i].data[0].inventory.push({ value: item.sales });
            acc.data[i].data[1].inventory.push({ value: item.purchase });
            acc.months.set(item.month, i+1);
            return acc;
        }, { months: new Map, data: [] } ).data
    };
}

// Input
var data = [
  {
    "date": "2017-01-03",
    "month": "JAN",
    "sales": "200",
    "purchase": "1000"
  },
  {
    "date": "2017-01-18",
    "month": "JAN",
    "sales": "800",
    "purchase": "2500"
  },
  {
    "date": "2017-01-22",
    "month": "JAN",
    "sales": "400",
    "purchase": "2100"
  },
  {
    "date": "2017-02-20",
    "month": "FEB",
    "sales": "40",
    "purchase": "90"
  },
  {
    "date": "2017-02-28",
    "month": "FEB",
    "sales": "970",
    "purchase": "2100"
  },
  {
    "date": "2017-02-29",
    "month": "FEB",
    "sales": "3300",
    "purchase": "2900"
  },
  {
    "date": "2017-03-20",
    "month": "MAR",
    "sales": "600",
    "purchase": "900"
  }
];

// Conversion
var result = transformData(data);

// Output
console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

动态月明智的数据集

month wise dataset dynamically

javascript

fusioncharts