ACCA MA||時間序列是什么？計算題?？际裁矗?></p> <!-- E Img --> <p> <p style="line-height:2em;">我們在學(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，會遇到時間序列相關(guān)內(nèi)容，這一考點*重要喲，可能會考到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.時間序列是什么？</strong></span></p><p style="line-height:2em;">時間序列就是把線性回歸中的X軸定義為時間，比如2019年一季度、2019年二季度、2019年三季度等，從而根據(jù)過去已經(jīng)實現(xiàn)的數(shù)值來預(yù)測未來的走勢，經(jīng)常用作銷量的預(yù)測。<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（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.時間序列計算題?？际裁?？</strong></span></p><p style="line-height:2em;">①Trend計算</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.時間序列計算題通常怎么考？</strong></span></p><p style="line-height:2em;"><strong>Trend計算</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（簡單代數(shù)或者sum=波動個數(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="g6ng5b6" class="c_twnbtn" style="display: none"> <a href="javascript:void(0);" class="contact_kefu" rel="nofollow">報名咨詢?nèi)肟?/a> <a href="javascript:void(0);" class="contact_kefu" rel="nofollow">索取免費資料</a> </div> <!-- 2019-08-10添加樣式 --> <div id="5mrcq1a" 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="dum00jx" class="danger_tips"> <span id="0btb06j" 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)內(nèi)容文章，產(chǎn)品及服務(wù)詳情可咨詢網(wǎng)站客服微信。</span> <span id="y0lwoa1" class="statement">文章轉(zhuǎn)載須注明來源，文章素材來源于網(wǎng)絡(luò)，若侵權(quán)請與我們聯(lián)系，我們將及時處理。</span> </div> <div id="9s5505j" class="entry-meta"> <ul class="article-prevnext" style="border-bottom: 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src="http://www.m.bdlyy.cn/static/index/images/icon_bkfy.png" alt="報考費用"> <p>報考費用</p> </a> </li> <li> <a href="https://www.m.bdlyy.cn/acca/article/34811.html" title="考試攻略" target="_blank" > <img src="http://www.m.bdlyy.cn/static/index/images/icon_test07.png" alt="考試攻略"> <p>考試攻略</p> </a> </li> <li> <a href="https://www.m.bdlyy.cn/acca/article/35128.html" title="考試大綱" target="_blank" > <img src="http://www.m.bdlyy.cn/static/index/images/icon_test03.png" alt="考試大綱"> <p>考試大綱</p> </a> </li> <li> <a href="https://www.m.bdlyy.cn/combo/order/book/cid/3" title="教材指南" target="_blank" > <img src="http://www.m.bdlyy.cn/static/index/images/icon_jczn.png" alt="教材指南"> <p>教材指南</p> </a> </li> <li> <a href="http://www.m.bdlyy.cn/combo/order/combo/cid/3" title="考試輔導(dǎo)" target="_blank" > <img src="http://www.m.bdlyy.cn/static/index/images/icon_ksfd.png" alt="考試輔導(dǎo)"> <p>考試輔導(dǎo)</p> </a> </li> <li> <a href="https://www.m.bdlyy.cn/acca/article/34854.html" title="考點信息" target="_blank" > <img 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