## kidhwa ##

根据幼儿测试身高体重与幼儿年龄性别计算出幼儿身体发育指标数据

## Installation ##

	$ npm install kidhwa


    const CalcKidHW = require('kidhwa');

    let data = CalcKidHW(month, gender, height, weight);

变量|名称|参数
-----|------|-----
month | 月龄 | 整数
gender | 性别 | 1:女,2:男
height | 身高 | cm
weight | 体重 | kg

## 例如 ##
    console.log(CalcKidHW(41, 1, 103.4, 16.3));
    输出:
    [
        {
            "type": 1,
            "name": "按年龄测体重",
            "levels": [
                ["p3", "p10", "p20", "p50", "p80", "p97"],
                [12.2, 13.05, 13.6, 14.9, 16.37, 19.08]
            ],
            "value": {
                "op": 4,
                "pos": 3,
                "name": "p50-p80"
            }
        },
        {
            "type": 2,
            "name": "按年龄测身高",
            "levels": [
                ["p3", "p10", "p20", "p50", "p80", "p97"],
                [92.5, 94.5, 95.8, 98.9, 101.5, 106.2]
            ],
            "value": {
                "op": 4,
                "pos": 4,
                "name": "p80-p97"
            }
        },
        {
            "type": 3,
            "name": "按身高测体重",
            "levels": [
                ["p3", "p10", "p20", "p50", "p80", "p97"],
                [13.8, 14.37, 14.88, 16, 17.4, 19.4]
            ],
            "value": {
                "op": 4,
                "pos": 3,
                "name": "p50-p80"
            }
        }, {
            "type": 5,
            "name": "其他：5岁以下儿童（身高别体重）消瘦、超重、肥胖诊断标准",
            "levels": [
                ["正常", "超重+1SD", "轻度肥胖+2SD", "中重肥胖+3SD"],
                [16.1, 17.7, 19.5, 21.6]
            ],
            "value": {
                "op": 4,
                "pos": 0,
                "name": "正常-超重+1SD"
            }
        },
        {
            "type": 7,
            "name": "体重标准值",
            "levels": [
                ["-1sd", "中位数", "+1sd"],
                [13.11, 14.65, 16.43]
            ],
            "value": {
                "op": 4,
                "pos": 1,
                "name": "中位数-+1sd"
            }
        },
        {
            "type": 8,
            "name": "身高标准值",
            "levels": [
                ["-1sd", "中位数", "+1sd"],
                [93.8, 97.5, 101.4]
            ],
            "value": {
                "op": 3,
                "pos": 2,
                "name": ">+1sd"
            }
        }
    ]

    op: 1: 小于, 2: 等于, 3: 大于, 4: 在两个区间内
    pos: 在levels中位置