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SQIpro

Comprehensive Soil Quality Index Computation and Visualization

Provides a comprehensive, modular framework for computing the Soil Quality Index (SQI) using six established methods: Linear Scoring (Doran and Parkin, 1994, <doi:10.2136/sssaspecpub35.c1>), Regression-based (Masto et al., 2008, <doi:10.1007/s10661-007-9697-z>), Principal Component Analysis-based (Andrews et al., 2004, <doi:10.2136/sssaj2004.1945>), Fuzzy Logic, Entropy Weighting (Shannon, 1948, <doi:10.1002/j.1538-7305.1948.tb01338.x>), and TOPSIS (Hwang and Yoon, 1981, <doi:10.1007/978-3-642-48318-9>). Implements four variable scoring functions: more-is-better, less-is-better, optimum-value, and trapezoidal, following Karlen and Stott (1994, <doi:10.2136/sssaspecpub35.c4>). Includes automated Minimum Data Set selection via Principal Component Analysis with Variance Inflation Factor filtering (Kaiser, 1960, <doi:10.1177/001316446002000116>), one-way ANOVA with Tukey HSD post-hoc tests, leave-one-out sensitivity analysis, and publication-quality visualization using 'ggplot2'.

Versions across snapshots

VersionRepositoryFileSize
0.1.0 rolling linux/jammy R-4.5 SQIpro_0.1.0.tar.gz 255.4 KiB
0.1.0 rolling linux/noble R-4.5 SQIpro_0.1.0.tar.gz 255.3 KiB
0.1.0 rolling source/ R- SQIpro_0.1.0.tar.gz 140.4 KiB
0.1.0 latest linux/jammy R-4.5 SQIpro_0.1.0.tar.gz 255.4 KiB
0.1.0 latest linux/noble R-4.5 SQIpro_0.1.0.tar.gz 255.3 KiB
0.1.0 latest source/ R- SQIpro_0.1.0.tar.gz 140.4 KiB
0.1.0 2026-04-26 source/ R- SQIpro_0.1.0.tar.gz 140.4 KiB
0.1.0 2026-04-23 source/ R- SQIpro_0.1.0.tar.gz 140.4 KiB

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