Indirect Estimation of Swelling Pressure of Expansive Soil: GEP versus MEP Modelling

Table 3

Pearson correlation matrix for the inputs and output parameter.

	CF		IP	Gs	ρdmax		Sp		Sn	Sl	Ps
CF	1
	0.50128	1
IP	0.572731	0.936494	1
Gs	0.05949	0.076885	0.084205	1
ρdmax	−0.046357	−0.29126	−0.27535	0.169862	1
	−0.018171	0.190189	0.156232	−0.15270	−0.68302	1
Sp	0.214009	0.230668	0.292073	−0.00936	−0.10361	0.038578	1
Wn	−0.244641	−0.01911	−0.02214	−0.04462	−0.2017	0.237487	0.020686	1
Sand	−0.183356	−0.10128	−0.13551	0.01469	−0.03830	0.136282	−0.05269	−0.07722	1
Silt	−0.638402	−0.31775	−0.35192	−0.16278	0.035395	−0.01821	−0.11140	0.20059	−0.37094	1
Ps	0.508326	0.266218	0.356669	0.170764	0.33329	−0.50083	0.20901	−0.18824	−0.08035	−0.38801	1

The bold values represent the result of optimum trials.