Table 4 Results of multivariate nonlinear regression analysis.

Formula: \({\text{Q}}_{\text{G}}=\text{a}*{\text{lnC}}_{\text{F}}+\text{b}*{\text{P}}_{\text{I}}+\text{c}*{\text{T}}_{\text{I}+}\text{d}*{\text{P}}_{\text{P}}+\text{m}\); R² = 0.9789

m

− 58.9941

22.6317

− 2.607

0.020705

*

a

23.6129

1.1702

20.179

9.53e−12

***

b

4.8303

1.0040

4.811

0.000277

***

c

1.4015

0.1004

13.959

1.31e−09

***

d

− 9.6749

1.9319

− 5.008

0.000192

***

Formula: \({\text{R}}_{\text{GW}}=\text{a}*{\text{lnC}}_{\text{F}}+\text{b}*{\text{P}}_{\text{I}}+\text{m}\); R² = 0.9743

m

46.8354

3.3190

14.111

1.90e−10

***

a

− 4.5665

0.1932

− 23.639

7.17e−14

***

b

− 1.1195

0.1657

− 6.756

4.61e−06

***

Formula: \({\text{R}}_{\text{E}}=\text{a}*{\text{lnC}}_{\text{F}}+\text{b}*{\text{P}}_{\text{I}}+\text{c}*{{\text{T}}_{\text{I}}}^{-1.4984}+\text{m}\); R² = 0.9848

m

3.89481

0.42139

9.243

1.39e−07

***

a

− 0.53954

0.02407

− 22.416

6.01e−13

***

b

− 0.13369

0.02065

− 6.476

1.05e−05

***

c

779.33801

37.94928

20.536

2.15e−12

***