主成分分析

你可将word，excel表的数据直接拷入左边的文本框内，按提交进行计算。

Succeed for sample data!特征向量后数据有误。
下面打印的是内积矩阵(相关矩阵)
1 0.2485 0.3911 -0.42 -0.5507 0.4083
0.2485 1 0.6559 -0.0806 -0.1296 0.7246
0.3911 0.6559 1 -0.3446 -0.4535 0.9608
-0.42 -0.0806 -0.3446 1 0.8143 -0.3918
-0.5507 -0.1296 -0.4535 0.8143 1 -0.4455
0.4083 0.7246 0.9608 -0.3918 -0.4455 1

Warning: Use of undefined constant j - assumed 'j' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: A non-numeric value encountered in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: Use of undefined constant j - assumed 'j' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: A non-numeric value encountered in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: Use of undefined constant j - assumed 'j' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: A non-numeric value encountered in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: Use of undefined constant j - assumed 'j' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: A non-numeric value encountered in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: Use of undefined constant j - assumed 'j' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

Warning: A non-numeric value encountered in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 118

特征值信息百分率信息量总和

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 169
E1(i)=3.3984 56.64% 56.64%

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 169
E1(i)=1.4638 24.4% 81.04%

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 169
E1(i)=0.6143 10.24% 91.27%

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 169
E1(i)=0.3263 5.44% 96.71%

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 169
E1(i)=0.1693 2.82% 99.53%

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C41_zcf.php on line 169
E1(i)=0.028 0.47% 100%

特征向量
X(1) X(2) X(3) X(4) X(5) X(6)
0.3511 0.3501 0.4763 -0.3569 -0.4005 0.4894
-0.251 0.5162 0.2907 0.5148 0.482 0.2977
0.8868 0.068 -0.1447 0.38 0.1562 -0.1389
0.0454 -0.7585 0.5022 0.3063 0.0364 0.2744
0.1577 -0.1371 -0.0191 -0.5916 0.7549 0.1899
-0.0221 -0.1107 -0.6443 0.1394 -0.1076 0.7356

Z(1)=0.3511X(1) + 0.3501X(2) + 0.4763X(3)-0.3569X(4)-0.4005X(5) + 0.4894X(6)
Z(2)=-0.251X(1) + 0.5162X(2) + 0.2907X(3) + 0.5148X(4) + 0.482X(5) + 0.2977X(6)
Z(3)=0.8868X(1) + 0.068X(2)-0.1447X(3) + 0.38X(4) + 0.1562X(5)-0.1389X(6)
根据要求上面列出的几个因子，已能保证代表供分析的各个因子百分之90的信息量。
因此，可以把分析重点放在这几个因子上。
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