Research Article
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 |
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The bold values represent the result of optimum trials.
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