Table 3 Performance parameters of the calibration and validation sets calculated for each proposed model

Slope

0.9985

0.9822

0.9535

0.9906

0.9984

0.9631

0.9538

0.9908

Intercept

-0.0827

0.1268

0.1474

0.0243

-0.0755

0.2519

0.1457

0.0267

Correlation coefficient (r)

0.9998

0.9997

0.9994

0.9998

0.9999

0.9992

0.9994

0.9998

RMSEC

0.2435

0.2644

0.2532

0.1462

0.2422

0.3430

0.2532

0.1468

RMSEP

0.1178

0.1463

0.2255

0.0724

0.1171

0.2373

0.2247

0.0720

Durbin-Watson DW

0.907

1.358

0.320

1.572

1.030

0.954

0.320

1.644

Durbin-Watson p

˂0.0001

˂0.0001

˂0.0001

˂0.0001

˂0.0001

˂0.0001

˂0.0001

˂0.0001

Parameter

MCR-ALS

ANN

PARA

ASC

CAF

CPM

PARA

ASC

CAF

CPM

Slope

1.0147

0.9942

0.9939

0.9717

1.001

0.9999

0.9996

0.9976

Intercept

-0.1788

0.0000

0.0864

0.0703

0.024

-0.0094

0.0394

0.0456

Correlation coefficient (r)

0.9999

0.9998

0.9997

0.9996

0.9999

1.0000

0.9998

0.9998

RMSEC

0.1412

0.2156

0.1254

0.2315

0.1330

0.2102

0.1195

0.0983

RMSEP

0.3304

0.6973

0.6285

0.6136

0.0699

0.0714

0.0043

0.1131

Durbin-Watson DW

-

-

-

-

2.000

2.000

2.000

2.000

Durbin-Watson p

-

-

-

-

0.161

1.000

1.000

0.277