ACCA MA||時(shí)間序列是什么？計(jì)算題?？际裁矗?></p> <!-- E Img --> <p> <p style="line-height:2em;">我們?cè)趯W(xué)習(xí)<a href="http://www.m.bdlyy.cn/acca/article/11281.html" target="_blank"><strong><span style="color:#E53333;">ACCA MA</span></strong></a>時(shí)，會(huì)遇到時(shí)間序列相關(guān)內(nèi)容，這一考點(diǎn)*重要喲，可能會(huì)考到10分的大題，一起去看看吧！</p><p style="text-align:center;line-height:2em;"><img src="https://img.m.bdlyy.cn/uploads/20200714/dac02537efa136e31ced14e0a947af89.png" alt="ACCA MA" width="752" height="291" title="ACCA MA" align="" /></p><p style="line-height:2em;"><span style="color:#E53333;"><strong>1.時(shí)間序列是什么？</strong></span></p><p style="line-height:2em;">時(shí)間序列就是把線性回歸中的X軸定義為時(shí)間，比如2019年一季度、2019年二季度、2019年三季度等，從而根據(jù)過(guò)去已經(jīng)實(shí)現(xiàn)的數(shù)值來(lái)預(yù)測(cè)未來(lái)的走勢(shì)，經(jīng)常用作銷(xiāo)量的預(yù)測(cè)。<span style="box-sizing:border-box;color:#616161;font-family:微軟雅黑;font-size:16px;text-indent:30.912px;white-space:normal;background-color:#FFFFFF;">戳：“</span><a href="https://jinshuju.net/f/jsmMXH" target="_blank" style="box-sizing:border-box;background-color:#FFFFFF;color:#555555;text-decoration-line:none;font-family:微軟雅黑;font-size:15.456px;text-indent:30.912px;white-space:normal;"><span style="box-sizing:border-box;color:#E53333;font-size:16px;"><strong style="box-sizing:border-box;">各科必背定義+歷年真題中文解析+20年BPP習(xí)題冊(cè)（PDF版）</strong></span></a><span style="box-sizing:border-box;color:#616161;font-family:微軟雅黑;font-size:16px;text-indent:30.912px;white-space:normal;background-color:#FFFFFF;">”</span></p><p style="text-align:center;line-height:2em;"><span style="color:#E53333;"><strong><img src="https://img.m.bdlyy.cn/uploads/20200714/cf0377f36fa10aee1fdfa24cb146208f.png" alt="" /><br /></strong></span></p><p style="line-height:2em;"><span style="color:#E53333;"><strong>2.時(shí)間序列計(jì)算題?？际裁?？</strong></span></p><p style="line-height:2em;">①Trend計(jì)算</p><p style="line-height:2em;">②Seasonal variation</p><p style="line-height:2em;">③Seasonally-adjusted</p><p style="line-height:2em;"><span style="color:#E53333;"><strong>3.時(shí)間序列計(jì)算題通常怎么考？</strong></span></p><p style="line-height:2em;"><strong>Trend計(jì)算</strong></p><p style="line-height:2em;">①題上告知trend的等式，代入數(shù)字即可；</p><p style="line-height:2em;">②考察moving average、second moving average的算法。</p><p style="line-height:2em;"><strong>Seasonal variation</strong></p><p style="line-height:2em;">①乘法模型（簡(jiǎn)單代數(shù)或者sum=0）</p><p style="line-height:2em;">Y=T+S   （Y：forecast results，T：forecast trend，S：seasonal variation）</p><p style="line-height:2em;">②加法模型（簡(jiǎn)單代數(shù)或者sum=波動(dòng)個(gè)數(shù)）</p><p style="line-height:2em;">Y=T*S   （Y：forecast results，T：forecast trend，S：seasonal variation）</p><p style="line-height:2em;">Seasonally-adjusted</p><p style="line-height:2em;"><strong>相當(dāng)于季節(jié)性因素的逆運(yùn)算求trend</strong></p><p style="line-height:2em;">加法模型：T=Y-S   （Y：actual results，T：actual trend，S：seasonal variation）</p><p style="line-height:2em;">乘法模型：T=Y/S   （Y：actual results，T：actual trend，S：seasonal variation）</p><p style="line-height:2em;">關(guān)于ACCA MA的相關(guān)內(nèi)容就分享到這里，想了解ACCA考試更多資訊，請(qǐng)關(guān)注融躍教育官網(wǎng)！</p> </p> <!-- E 正文 --> </div> <!-- 2019-05-27添加樣式 --> <div id="wgyccwo" class="c_twnbtn" style="display: none"> <a href="javascript:void(0);" class="contact_kefu" rel="nofollow">報(bào)名咨詢(xún)?nèi)肟?/a> <a href="javascript:void(0);" class="contact_kefu" rel="nofollow">索取免費(fèi)資料</a> </div> <!-- 2019-08-10添加樣式 --> <div id="adkcmqv" class="news_code"> <a href="https://www.m.bdlyy.cn/combo/index/material" rel="nofollow"><img src="/static/index/images/new_addacca.gif" alt="添加老師領(lǐng)取學(xué)習(xí)資料" ></a> </div> <!-- 禁止轉(zhuǎn)載 --> <div id="srol7sf" class="danger_tips"> <span id="do2thea" class="statement">本文章為學(xué)習(xí)相關(guān)信息展示文章，非課程及服務(wù)廣告文章，產(chǎn)品及服務(wù)詳情可咨詢(xún)網(wǎng)站客服微信。</span> <span id="ce3xlu3" 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