Table 2 Prediction results of PLS-DA models of FLP built by different variable selection methods.

From: Application of variable selection in the origin discrimination of Wolfiporia cocos (F.A. Wolf) Ryvarden & Gilb. based on near infrared spectroscopy

Primary ID

886 spectral variables

20 spectral variables by CARS

35 spectral variables by MC-UVE

30 spectral variables by SPA

129 spectral variables by LPG

AC

CC

Ypre

Ydev

AC

CC

Ypre

Ydev

AC

CC

Ypre

Ydev

AC

CC

Ypre

Ydev

AC

CC

Ypre

Ydev

FLP-01

1

1

0.940

0.042

1

1

0.551

0.317

1

1

1.078

0.055

1

1

0.816

0.130

1

1

0.852

0.105

FLP-05

1

1

1.622

0.440

1

1

0.488

0.362

1

1

0.598

0.285

1

1

0.652

0.246

1

1

0.434

0.400

FLP-32

1

1

1.015

0.011

1

1

1.114

0.081

1

1

0.593

0.288

1

1

0.627

0.264

1

1

1.057

0.040

FLP-34

1

1

1.608

0.430

1

UN

0.380

0.438

1

1

1.290

0.205

1

1

1.172

0.122

1

1

0.974

0.018

FLP-40

1

1

0.799

0.142

1

1

1.133

0.094

1

1

0.609

0.277

1

1

1.013

0.009

1

1

0.906

0.066

FLP-50

1

1

0.810

0.134

1

1

1.138

0.098

1

1

0.866

0.095

1

1

1.436

0.308

1

1

0.870

0.092

FLP-59

1

1

0.617

0.271

1

1

0.971

0.021

1

1

0.579

0.298

1

1

1.321

0.227

1

1

0.647

0.249

FLP-30

2

2

1.895

0.074

2

2

1.474

0.372

2

2

2.465

0.329

2

2

1.802

0.140

2

2

1.737

0.186

FLP-46

2

2

2.681

0.482

2

2

1.502

0.352

2

2

1.701

0.212

2

2

2.47

0.332

2

2

1.604

0.280

FLP-49

2

2

2.587

0.415

2

2

2.053

0.037

2

2

1.509

0.347

2

2

1.866

0.095

2

2

1.521

0.339

FLP-54

2

2

1.855

0.102

2

2

1.566

0.307

2

2

1.663

0.238

2

2

1.657

0.243

2

2

1.962

0.027

FLP-08

3

3

2.989

0.008

3

3

3.368

0.260

3

3

3.039

0.028

3

3

3.469

0.332

3

3

2.899

0.072

FLP-26

4

4

3.616

0.271

4

4

3.900

0.071

4

4

4.463

0.327

4

4

3.779

0.156

4

4

3.828

0.121

FLP-45

4

4

4.412

0.291

4

4

4.350

0.247

4

4

3.723

0.196

4

SU

3.275

0.513

4

4

4.487

0.344

FLP-04

5

5

5.407

0.288

5

5

5.474

0.335

5

5

4.683

0.224

5

5

5.321

0.227

5

5

5.482

0.341

FLP-19

5

5

5.557

0.394

5

5

4.774

0.160

5

5

5.025

0.018

5

5

5.477

0.337

5

5

4.666

0.236

FLP-23

5

SU

5.727

0.514

5

5

4.785

0.152

5

5

5.335

0.237

5

5

4.589

0.291

5

5

4.760

0.170

FLP-25

5

5

4.777

0.158

5

5

4.599

0.284

5

5

4.789

0.149

5

5

4.720

0.198

5

5

4.809

0.135

Accuracy (%)

94.44

94.44

100

94.44

100

R 2

0.932

0.950

0.958

0.949

0.964

RMSECV

0.311

0.268

0.245

0.269

0.225

RMSEP

0.410

0.353

0.323

0.354

0.296

  1. Note: AC (Actual Class), CC (Calculated Class), Ypre (Predicted value), Ydev (Deviation), UN (uncredited), SU (suspicious).
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