Table 3 Correlation coefficients between each input and output.

From: Database of soil properties incorporating organic content from roots and soil organisms for regional slope stabilisation

 

Input parameters

 

Sand

Fines

PI

OC

Dry density

Output parameters

Shear strength parameters

\(c^{\prime}\)

 − 0.2

0.2

 − 0.1

0

0.3

\(\phi^{\prime}\)

0

0

 − 0.1

 − 0.4*

0.6*

\({\phi }^{b}\)

0.1

 − 0.1

0

0.2

 − 0.2

SWCC

log(a)

 − 0.2

0.2

0.5*

0.3*

0

n

0.2

 − 0.2

 − 0.5*

 − 0.3*

0

m

 − 0.1

0.1

0.4*

0.4*

 − 0.1

\({\theta }_{s}\)

0.2

 − 0.2

0.2

0.7*

 − 0.6*

log(\({k}_{s}\))

0.3*

 − 0.3*

 − 0.1

 − 0.2

0.1

  1. *Statistics are significant at a 95% significance level.
  2. Two Significant values with higher SHAP impact are in bold.
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