Table 1 Correlation measures for database.

From: Development of machine learning models for forecasting the strength of resilient modulus of subgrade soil: genetic and artificial neural network approaches

Variables

wPI

δc

MC

δd

γd

NFT

MR

wPI

1.00

      

δc

− 0.05

1.00

     

MC

0.52

0.04

1.00

    

δd

− 0.08

0.02

− 0.03

1.00

   

γd

− 0.37

− 0.09

− 0.91

0.03

1.00

  

NFT

0.02

− 0.01

0.01

0.00

0.03

1.00

 

MR

− 0.02

0.03

− 0.35

− 0.11

0.28

− 0.33

1.00

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