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- <template>
- <a-card size="small" :bordered="false" class="explainQspj-warp">
- <div class="explainQspj-cont">
- <p class="explain-tit">趋势平均法</p>
- <p class="explain-txt margin-b-30">趋势平均法是从过去各期实际销售量中,观察其增减变动的基本趋势并使其平均化,从而排除了某一个别销售期可能存在偶然因素的影响的一种销售预测法。</p>
- <div class="sub-tit">
- <img src="@/assets/explain/icon_sales.png" width="16" class="tit-icon" />
- <p class="txt">预计月销量</p>
- </div>
- <div class="item-cont">
- <p class="item-exp">预计月销量= = A + n×T</p>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">其中 A 表示五期平均值,n 表示距离预测时间的期数,T 表示趋势平均值</p>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">如果是新产品,没有历史销量,则不会进行预测,下载结果的excel中显示为-</p>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">如果产品上线时间不长,历史销售量记录小于12个月,则取有记录的销量平均值作为预计月销量</p>
- </div>
- </div>
- <div class="sub-tit">
- <img src="@/assets/explain/icon_inventory.png" width="16" class="tit-icon" />
- <p class="txt">安全库存</p>
- </div>
- <div class="item-cont">
- <p class="item-exp">安全库存=需求的标准偏差 × 安全系数 × 交付前置期开方</p>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">标准偏差是一个统计值,用来衡量一组个体值的离散程度,由希腊字母西格玛(σ)表示。在具体计算时,先计算出每个个体值的方差,加总后再开方便得到标准偏差。</p>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">安全系数与服务水平相关,服务水平越高,对应的安全系数就越大</p>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">交付前置期是订货周期/30</p>
- </div>
- </div>
- <div class="sub-tit">
- <img src="@/assets/explain/icon_mete.png" width="16" class="tit-icon" />
- <p class="txt">预计需求量</p>
- </div>
- <div class="item-cont">
- <p class="item-exp">预计需求量=预计月销量 × 交付前置期 + 安全库存</p>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">交付前置期是订货周期/30</p>
- </div>
- </div>
- <div class="sub-tit">
- <img src="@/assets/explain/icon_example.png" width="16" class="tit-icon" />
- <p class="txt">示例</p>
- </div>
- <div class="item-cont">
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">某产品的订货周期为45天,最近12个月的实际销量如下表</p>
- </div>
- <div class="item-table">
- <a-table :columns="columns" :data-source="dataSource" bordered :pagination="false"></a-table>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">计算预计月销量 = 54.4 + 3 × (-0.2) = 53.8 ≈ 54(四舍五入)</p>
- </div>
- <div class="item-table">
- <a-table :columns="columnsXl" :data-source="dataSourceXl" bordered :pagination="false"></a-table>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">计算安全库存 = 73的开方 × 90%的服务水平对应的安全系数 × 45/30的开方 = 8.54 × 1.28 × 1.22 = 13.34 ≈ 13(四舍五入)</p>
- </div>
- <div class="item-table">
- <a-table :columns="columnsKc" :data-source="dataSourceKc" bordered :pagination="false"></a-table>
- </div>
- <div class="item-main">
- <img src="@/assets/explain/pressed_gray.png" width="12" class="item-icon" />
- <p class="item-txt">计算预计需求量 = 54 × (45/30) + 13 = 94</p>
- </div>
- </div>
- <div style="text-align:center;padding: 20px;">
- <a-button type="default" @click="closePage">关闭</a-button>
- </div>
- </div>
- </a-card>
- </template>
- <script>
- export default {
- data () {
- return {
- columns: [
- { title: '1月', dataIndex: 'january', align: 'center' },
- { title: '2月', dataIndex: 'february', align: 'center' },
- { title: '3月', dataIndex: 'march', align: 'center' },
- { title: '4月', dataIndex: 'april', align: 'center' },
- { title: '5月', dataIndex: 'may', align: 'center' },
- { title: '6月', dataIndex: 'june', align: 'center' },
- { title: '7月', dataIndex: 'july', align: 'center' },
- { title: '8月', dataIndex: 'august', align: 'center' },
- { title: '9月', dataIndex: 'september', align: 'center' },
- { title: '10月', dataIndex: 'october', align: 'center' },
- { title: '11月', dataIndex: 'november', align: 'center' },
- { title: '12月', dataIndex: 'december', align: 'center' }
- ],
- dataSource: [
- { january: 55, february: 53, march: 54, april: 56, may: 58, june: 57, july: 52, august: 52, september: 56, october: 52, november: 53, december: 59 }
- ],
- columnsXl: [
- { title: '月份', dataIndex: 'title', align: 'center' },
- { title: '1月', dataIndex: 'january', align: 'center' },
- { title: '2月', dataIndex: 'february', align: 'center' },
- { title: '3月', dataIndex: 'march', align: 'center' },
- { title: '4月', dataIndex: 'april', align: 'center' },
- { title: '5月', dataIndex: 'may', align: 'center' },
- { title: '6月', dataIndex: 'june', align: 'center' },
- { title: '7月', dataIndex: 'july', align: 'center' },
- { title: '8月', dataIndex: 'august', align: 'center' },
- { title: '9月', dataIndex: 'september', align: 'center' },
- { title: '10月', dataIndex: 'october', align: 'center' },
- { title: '11月', dataIndex: 'november', align: 'center' },
- { title: '12月', dataIndex: 'december', align: 'center' }
- ],
- dataSourceXl: [
- { title: '实际销量', january: 55, february: 53, march: 54, april: 56, may: 58, june: 57, july: 52, august: 52, september: 56, october: 52, november: 53, december: 59 },
- { title: '五期平均值', january: '-', february: '-', march: 55.2, april: 55.6, may: 55.4, june: 55.0, july: 55.0, august: 53.8, september: 53.0, october: 54.4, november: '-', december: '-' },
- { title: '变动趋势值', january: '-', february: '-', march: '-', april: 0.4, may: -0.2, june: -0.4, july: 0, august: -1.2, september: -0.8, october: 1.4, november: '-', december: '-' },
- { title: '三期趋势平均值', january: '-', february: '-', march: '-', april: '-', may: -0.067, june: -0.2, july: -0.533, august: -0.667, september: -0.2, october: '-', november: '-', december: '-' }
- ],
- columnsKc: [
- { title: '月份', dataIndex: 'title', align: 'center' },
- { title: '1月', dataIndex: 'january', align: 'center' },
- { title: '2月', dataIndex: 'february', align: 'center' },
- { title: '3月', dataIndex: 'march', align: 'center' },
- { title: '4月', dataIndex: 'april', align: 'center' },
- { title: '5月', dataIndex: 'may', align: 'center' },
- { title: '6月', dataIndex: 'june', align: 'center' },
- { title: '7月', dataIndex: 'july', align: 'center' },
- { title: '8月', dataIndex: 'august', align: 'center' },
- { title: '9月', dataIndex: 'september', align: 'center' },
- { title: '10月', dataIndex: 'october', align: 'center' },
- { title: '11月', dataIndex: 'november', align: 'center' },
- { title: '12月', dataIndex: 'december', align: 'center' },
- { title: '求和', dataIndex: 'sum', align: 'center' }
- ],
- dataSourceKc: [
- { title: '实际销量', january: 55, february: 53, march: 54, april: 56, may: 58, june: 57, july: 52, august: 52, september: 56, october: 52, november: 53, december: 59, sum: '--' },
- { title: '实际销量', january: 54, february: 54, march: 54, april: 54, may: 54, june: 54, july: 54, august: 54, september: 54, october: 54, november: 54, december: 54, sum: '--' },
- { title: '实际销量', january: 1, february: -1, march: 0, april: 2, may: 4, june: 3, july: -2, august: -2, september: 2, october: -2, november: -1, december: 5, sum: '--' },
- { title: '实际销量', january: 1, february: 1, march: 0, april: 4, may: 16, june: 9, july: 4, august: 4, september: 4, october: 4, november: 1, december: 25, sum: 73 }
- ]
- }
- },
- methods:{
- closePage(){
- this.$emit('close')
- }
- }
- }
- </script>
- <style lang="less">
- .explainQspj-warp{
- .explainQspj-cont{
- width: 960px;
- margin: 0 auto;
- p{
- margin: 0;
- }
- .explain-tit{
- font-size: 18px;
- font-weight: bold;
- text-align: center;
- margin: 20px 0 30px;
- }
- .explain-txt{
- font-size: 13px;
- color: rgba(0,0,0,0.85);
- }
- .margin-b-30{
- margin-bottom: 30px;
- }
- .sub-tit{
- margin-bottom: 10px;
- .tit-icon{
- vertical-align: text-bottom;
- margin-right: 5px;
- }
- .txt{
- font-size: 16px;
- color: rgba(0, 21, 41, 1);
- display: inline-block;
- margin: 0;
- }
- }
- .item-cont{
- font-size: 13px;
- padding-left: 23px;
- line-height: 26px;
- margin-bottom: 25px;
- .item-exp{
- color: rgba(231, 0, 18, 0.85);
- }
- .item-main{
- position: relative;
- .item-icon{
- position: absolute;
- left: 0;
- top: 7px;
- }
- .item-txt{
- padding-left: 20px;
- }
- }
- .item-table{
- margin: 15px 0;
- }
- }
- }
- }
- </style>
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