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Accept-charset="utf-8"> <input type="hidden" name="lang" value="" /> <input type="hidden" name="pc" value="1" /> <div class="text"><input type="text" size="19" name="key" id="key" autocomplete="on" /></div> <div class="image"><input type="image" src="/keisan/pc/common/img/btn_search.gif" class="hov" / alt=""></div> </form> </div> </div> </div> </div> <noscript> <div id='noscript'> ご使用のブラウザは、JAVASCRIPTの設定がOFFになっているため一部の機能が制限されてます。 </div> </noscript> <script>var lang='';var is_pc=1; var loginflag=0; var nownicname='';</script> <script src='/keisan/common/js/KeisanHeader.js?20230516' charset='utf-8'></script> </div>  <body onpageshow="if(event.persisted){onLoadfunc();}" onLoad="onLoadfunc(); "><div id='contents'><div id='main-contents'><div class='col-tit'> <h1 class='title'><span class='ico0103' id='iconbar'>度数付き直線回帰 </span></h1></div><div class='bread-navi'><ol class='bread-crumbs'><li><a href='/'>ホーム</a></li><span id='allimage'></span><li> / <a href='/menu/system/000000000780'>計算応用集</a></li><li> / <a href='/menu/system/000000001620'>度数付き回帰・推定</a></li></ol></div><div class='section'><div id='tb-col'><script> setHistoryList("度数付き直線回帰",'', ''); sysUserCode='system/14470516270704';</script><div class='scroolpnt'><table width='100%' border='0' cellspacing='0' cellpadding='0' id='toptable'><tr><td colspan=3 id='summary' class='top_left'><h2 class='title'>入力した度数分布表を直線回帰で分析しグラフ描画します。</h2></td></tr><tr><td colspan=3 id='upcom' align='center'><table id='tablemid' class='setumei'><tr><td>直線回帰： y=A+Bx</td></tr></table></td></tr><tr><td colspan=2 align='center'><form name='calc'><input type='hidden' name='lang' value=''><input type='hidden' name='charset' value='utf-8'><table id='inparea'><tr><td colspan='3' class='center'><span id='myGraphA'></span></td></tr><tr><td></td><td align='left'><ul class='inner-table'><ol><li><font color='blue' size='-1' ><span id='var_rem2_disp'></span></font></li><li><span id='var_rem2_inp'><input size='0' autocomplete=off type='hidden' name='var_rem2' id='var_rem2' value='0' class='text'></span></li><li><font color='blue' size='-1' ><span id='var_rem2_unit'></span></font></li><li><font color='blue' size='-1' ><span id='var_rem2_explain' class='execspon'><sub>（下表の各セルをクリックして入力）</sub></span></font></li></ol></ul></td><td rowspan=2 class='center'><span id='myGraphB'></span></td></tr><tr><td class='right'><span id='var_a_disp'>データ <br>(表入力) </span></td><td><ul class='inner-table'><ol><li><span id='var_a_AREA'></span><span id='var_a_inp'><input type='hidden' name='var_a' id='var_a' value=''></span></li><li><span id='var_a_unit'></span></li><li><span id='var_a_explain' class='execspoff'></span></li><li><span id='var_alen_disp'></span></li><li><span id='var_alen_inp' disp_on_off='OFF'><input size='12' type='hidden' name='var_alen' id='var_alen' value=''></span></li><li><span id='var_alen_unit'></span></li><li><span id='var_alen_explain' class='execspoff'></span></li></ol></ul></td></tr><tr><td colspan='2' class='center'><input type='button' value=' 計算 ' onclick='return checkText()' class='bigbutton' id='executebtn'><input type='button' id='clearbtn' value='クリア' onclick='clearText()' class='bigbutton'><span id='graph'></span><span id='loadsavebtnarea'><input type='button' value='保存・呼出' id='loadsavebtn' onclick='loadSaveBtn(1)' class='bigbutton'></span><select name='ketasu' class='ketasu'><option value='6' >6桁</option><option value='10' selected>10桁</option><option value='14' >14桁</option><option value='18' >18桁</option><option value='22' >22桁</option><option value='26' >26桁</option><option value='30' >30桁</option><option value='34' >34桁</option><option value='38' >38桁</option><option value='42' >42桁</option><option value='46' >46桁</option><option value='50' >50桁</option></select><script> if(document.getElementById('graph') != null){document.getElementById('graph').innerHTML = "";} </script> <hr class='line'><span id='loadSaveArea'></span></td></tr><tr><td colspan='2' class='center'><span id='myGraphC'></span></td></tr><tr><td colspan=2 class='center'><div><div align='center' style='margin-top:2px;margin-bottom:3px;'><b></b></div><span id='exetb2'></span></div></td></tr><tr><td colspan=2></td></tr></table></td></tr></table></div></form><script> createExcelTable('var_a_EXL', 'var_a_AREA', '"x","y","f",83,183,1,71,168,2,64,171,3,69,178,0,69,176,2,64,172,1,68,165,1,59,158,3,81,183,1,91,182,1,57,163,4,65,175,0,58,164,1,62,175,2', '15,3', 'off|off|center|F3F7FC|0000DB', 'on|on|center|F3F7FC|0000DB', 'on|on|center|F3F7FC|0000DB', 'off|off|center|F3F7FC|0000DB', '100],3', 'No.', 'ON', '|'); var calendarAr = new Array();</script><div id='exetb0' style='text-align:center'><span id='exetb' style='display:inline-block;margin-bottom:10px'></span><span id='exeright'></span></div><div class='center_container'><table class='image_d_exe' align='center'><tr><td class='center'><span id='myGraph'></span></td></tr></table><div align='center'><span id='myGraphE'></span></div><div align='center'><table align='center' class='setumei'><tr><td align='left'>相関係数r の見方<br />　　0.7＜|r|≦1　　　　相関が強い<br />　　0.4＜|r|＜0.7　　　中間の強さ<br />　　0.2＜|r|＜0.4　　　相関が弱い<br />　　0≦|r|＜0.2　　　　相関がない<br /><br /><br /><table align=center style='max-width:100px;clear:left'><tr><td><span class='getMathWidth' style='display:none;'>$\normalsize\ Linear\ regression\\<br />(1)\ mean:\ \bar{x}={\large \frac{{\small \sum}{x_i f_i}}{n}},\hspace{10px}\bar{y}={\large \frac{{\small \sum}{y_i f_i}}{n}},\hspace{10px}n={\small \sum}f_i\\<br />(2)\ trend\ line:\ y=A+Bx,\hspace{10px} B={\large\frac{Sxy}{Sxx}},\hspace{10px} A=\bar{y}-B\bar{x}\\<br />(3)\ correlation\ coefficient:\ r=\frac{\normalsize S_{xy}}{\normalsize \sqrt{S_{xx}}\sqrt{S_{yy}}}\\<br />\hspace{20px}S_{xx}={{\small \sum}(x_i-\bar{x})^2 f_i}={{\small \sum} x_i^2 f_i}- n \cdot \bar{x}^2\\<br />\hspace{20px}S_{yy}={{\small \sum}(y_i-\bar{y})^2 f_i}={{\small \sum} y_i^2 f_i}- n \cdot \bar{y}^2\\<br />\hspace{20px}S_{xy}={{\small \sum}(x_i-\bar{x})(y_i-\bar{y}) f_i}={{\small \sum} x_i y_i f_i}- n \cdot \bar{x}\bar{y}\\<br />$</span></td></tr></table></td></tr></table></div></div></div>  <div id='questionnaire'><ul class='tab-title cf'></ul><div class='tabs' id='quest-tabs'><ul class='tab-title cf'><li class='tab-voice'><div><img src='/keisan/pc/common/img/ico_voice.png' alt='' /><a href='#voice' onclick='_tabpc = 1;readAnketo(0)'><span>お客様の声</span></a></div></li><li class='tab-enq'><div><img src='/keisan/pc/common/img/ico_enq.png' alt='' /><a href='#enq' onclick='ankset();'><span>アンケート投稿</span></a></div></li><li class='tab-faq'><div><img src='/keisan/pc/common/img/ico_faq.png' alt='' /><a href='#faq' onclick='frqask()'><span>よくある質問</span></a></div></li><li class='tab-link'><div><img src='/keisan/pc/common/img/ico_link.png' alt='' /><a href='#link' onclick='linkset();'><span>リンク方法</span></a></div></li></ul><div id='voice' class='tab-contents'><span class="top"><div 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