序号

点位

1

2

3

4

5

6

7

8

9

10

$w_j$

1

pH

0.5738

0.6790

0.5190

0.5748

0.7061

0.4430

0.7063

0.6518

0.6533

0.6610

0.0679

2

水温

0.5764

0.6827

0.5107

0.5645

0.6227

0.4154

0.7103

0.6387

0.7546

0.7648

0.0687

3

溶解氧

0.5245

0.6195

0.5021

0.5670

0.7305

0.4519

0.6674

0.6227

0.8065

0.7426

0.0687

4

悬浮物质

0.5096

0.4513

1.0000

1.0000

0.4741

0.3463

0.9198

1.0000

0.5755

0.6457

0.069

5

粪大肠杆菌

0.6343

0.4513

0.6620

0.7555

1.0000

0.5432

0.5566

0.8944

0.5232

0.4433

0.0691

6

化学需氧量

0.5952

0.7355

0.5593

0.6089

0.7640

0.4677

0.7966

0.6856

0.4399

0.6081

0.0762

7

生化需氧量

0.6004

0.7247

0.5547

0.6248

0.7738

0.4722

0.8028

0.7249

0.4399

0.5582

0.0739

8

无机氮

0.4605

0.4513

0.5526

0.6134

0.7889

0.4715

0.7491

0.6885

0.8010

0.7707

0.0776

9

非离子氨

0.4522

0.4513

0.5614

0.6147

0.7869

0.4699

0.7145

0.6588

0.8281

0.8404

0.0727

10

活性磷酸盐

0.4399

0.4513

0.5239

0.6188

0.7845

0.4362

0.7063

0.6444

1.0000

1.0000

0.0737

11

石油类

0.8140

0.7260

0.5271

0.5792

0.7170

0.4715

1.0000

0.6950

0.4399

0.4781

0.071

12

铜

1.0000

1.0000

0.6878

0.4260

0.4941

0.4867

0.4633

0.4669

0.8383

0.8509

0.0712

13

铅

0.7806

0.4513

0.5358

0.9283

0.8657

0.3333

0.6425

0.9325

0.5342

0.6884

0.0702

14

镉

0.4023

0.4513

0.3746

0.4028

0.7681

1.0000

0.9844

0.8817

0.8845

0.8985

0.0699