package?algorithms.regression;
import?java.io.*;
import?java.util.Arrays;
class?Calculator
{
?int?abcde;
??int?valueGrp[]=?new?int[5];

?int?add（）?//錕斤拷錕藉函錕斤拷錕皆盿dd（）錕斤拷錕斤拷4錕斤拷錕斤拷錕斤拷錕街拷錕\uFFFD
?{?return?a+b;?}
?int?sub（）?//錕斤拷錕藉函錕斤拷錕皆眘ub（）錕斤拷錕斤拷4錕斤拷錕斤拷錕斤拷錕街拷錕\uFFFD
?{?return?a-b;?}

?//錕斤拷錕斤拷?mid（abcde）?method?錕斤拷錕揭籌拷abcde錕斤拷錕叫鹼拷值錕斤拷
????double?mid（）{
??int?num?=?valueGrp.length/2;
??return?（double）valueGrp[num];
?}

?//錕斤拷錕斤拷?average（abcde）?method?錕斤拷錕揭籌拷abcde錕斤拷平錕斤拷值錕斤拷
????double?average（）{
??double?total=0;
??for?（int?i=0;?i????total+=（double）valueGrp[i];
??}
??return?total/（double）valueGrp.length;
?}


?//錕斤拷錕斤拷?sort（abcde）?method?錕斤拷abcde錕斤拷錕斤拷錕斤拷錕斤拷
????String?sort（）{
??Arrays.sort（valueGrp）;
??String?tt?=?““;
??for?（int?i=0;?i????tt+=“?“+valueGrp[i];
??}
??return?tt;
?}

?//錕斤拷錕斤拷?stdev（abcde）?method?錕斤拷錕斤拷錕斤拷abcde錕斤拷準錕斤拷值錕斤拷
????double?stdev（）{
??//錕斤拷準錕筋公式?錕斤拷錕斤拷錕絰?錕劫匡拷錕斤拷錕\uFFFD?x.sqrt（）;
??//avgrValue=平錕斤拷值
??//?（N-avgrValue）^2?每錕斤拷錕斤拷p去平錕斤拷值錕斤拷平錕斤拷（N?為:?ABCDE?錕斤拷錕斤拷）
??//x=（?（a-avgrValue）^2?+（a-avgrValue）^2+（a-avgrValue）^2+（a-avgrValue）^2+（a-avgrValue）^2?）/5
??double?avgrValue?=?this.average（）;
????????double?x?=0;
??for?（int?i=0;?i????x+=Math.pow（（double）valueGrp[i]-avgrValue2）;
??}
??x?=?x/5;
??return?Math.sqrt（x）;
?}
}

?屬性????????????大小?????日期????時間???名稱
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?????文件???????1638??2010-04-01?14:03??regression\Calculator.java

?????文件?????381237??2010-04-01?14:02??regression\Regression.java

?????文件???????5858??2010-04-01?14:21??regression\RegressionExampleTwo.java

?????目錄??????????0??2013-11-04?18:38??regression

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???????????????388733????????????????????4