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aridagri

Comprehensive Statistical Tools for Agricultural Research

aridagri is a comprehensive R package providing 35+ functions for statistical analysis in agricultural research, with special focus on experimental design analysis and agronomic calculations.

Key Features

🔬 Complete ANOVA Suite: All experimental designs with proper error terms
📊 Multiple Post-Hoc Tests: LSD, Duncan, Tukey, SNK, Scheffé, Bonferroni, Dunnett
📈 Stability Analysis: 7 methods (Eberhart-Russell, AMMI, Finlay-Wilkinson, Shukla, Wricke, CV, Superiority)
🌡️ Thermal Indices: GDD, HTU, PTU, Heat Use Efficiency
🌱 Crop Growth Analysis: CGR, RGR, NAR, LAI
📋 Publication-Ready Output: Formatted tables with SE, CD, CV

Installation

# Install devtools if needed
install.packages("devtools")

# Install aridagri from GitHub
devtools::install_github("lalitrolaniya/aridagri")

Function Overview

Experimental Design ANOVA (17 Functions)

Function	Design
`anova_crd()`	Completely Randomized Design
`anova_rbd()`	Randomized Block Design
`anova_rbd_pooled()`	Pooled RBD (Multi-Environment)
`anova_latin()`	Latin Square Design
`anova_factorial()`	Two-Factor Factorial
`anova_factorial_3way()`	Three-Factor Factorial
`anova_spd()`	Split Plot Design
`anova_spd_ab_main()`	SPD with (A×B) in Main Plot
`anova_spd_c_main_ab_sub()`	SPD with C Main, (A×B) Sub
`anova_spd_ab_cd()`	SPD with (A×B) Main, (C×D) Sub
`anova_spd_pooled()`	Pooled Split Plot Design
`anova_sspd()`	Split-Split Plot Design
`anova_sspd_pooled()`	Pooled SSPD
`anova_strip()`	Strip Plot Design
`anova_augmented()`	Augmented Block Design
`anova_alpha_lattice()`	Alpha Lattice Design

Post-Hoc Tests (8 Methods)

All available via perform_posthoc(): - Fisher’s LSD - Duncan’s Multiple Range Test (DMRT) - Tukey’s HSD - Student-Newman-Keuls (SNK) - Scheffé’s Test - Bonferroni Correction - Dunnett’s Test (vs Control)

Agronomic Analysis (6 Functions)

Function	Analysis
`stability_analysis()`	7-method stability analysis
`thermal_indices()`	GDD, HTU, PTU, HUE
`crop_growth_analysis()`	CGR, RGR, NAR, LAI
`harvest_index()`	HI and partitioning
`yield_gap_analysis()`	Yield gap calculations
`economic_indices()`	B:C ratio, net returns

Statistical Analysis (4 Functions)

Function	Analysis
`correlation_analysis()`	Correlation matrix with significance
`pca_analysis()`	Principal Component Analysis
`path_analysis()`	Path coefficients
`sem_analysis()`	Structural Equation Modeling

Nutrient Analysis (3 Functions)

Function	Analysis
`nue_calculate()`	Nutrient Use Efficiency indices
`nutrient_response()`	Response curve analysis
`economic_analysis()`	Economic optimum

Quick Examples

Split-Split Plot Design ANOVA

library(aridagri)

data <- expand.grid(
  rep = 1:3,
  irrigation = c("I1", "I2", "I3"),
  variety = c("V1", "V2"),
  nitrogen = c("N0", "N40", "N80")
)
data$yield <- rnorm(nrow(data), 1200, 150)

result <- anova_sspd(data, 
                     response = "yield",
                     main_plot = "irrigation",
                     sub_plot = "variety",
                     sub_sub_plot = "nitrogen",
                     replication = "rep")

Stability Analysis (7 Methods)

data <- expand.grid(
  variety = paste0("V", 1:10),
  location = paste0("L", 1:5),
  rep = 1:3
)
data$yield <- rnorm(nrow(data), 1200, 200)

stability_analysis(data, 
                   genotype = "variety",
                   environment = "location",
                   replication = "rep",
                   trait = "yield",
                   method = "all")

Unique Features

First R package with ALL split plot design variations
Complete SE/CD calculations for every comparison type
7 stability analysis methods in single function
Integrated thermal indices (GDD, HTU, PTU, HUE)
Crop growth analysis (CGR, RGR, NAR, LAI)
Publication-ready formatted output

Citation

Rolaniya, L.K., Jat, R.L., Punia, M., and Choudhary, R.R. (2026). aridagri: 
Comprehensive Statistical Tools for Agricultural Research. 
R package version 2.0.3. https://github.com/lalitrolaniya/aridagri

Authors

Lalit Kumar Rolaniya (Maintainer) Scientist (Agronomy) ICAR-Indian Institute of Pulses Research, Regional Centre, Bikaner, Rajasthan-334006, India ORCID: 0000-0001-8908-1211

Ram Lal Jat Senior Scientist (Agronomy) ICAR-Indian Institute of Pulses Research, Regional Centre, Bikaner, Rajasthan-334006, India ORCID: 0009-0003-4339-0555

Monika Punia Scientist (Genetics & Plant Breeding) ICAR-Indian Institute of Pulses Research, Regional Centre, Bikaner, Rajasthan-334006, India ORCID: 0009-0002-0294-6767

Raja Ram Choudhary Scientist (Agronomy) ICAR-Indian Institute of Groundnut Research, Regional Research Station, Bikaner, Rajasthan-334006, India

Acknowledgments

The authors gratefully acknowledge ICAR-Indian Institute of Pulses Research, Kanpur for providing necessary support and infrastructure for the development of this package.

License

GPL-3

Contributing

Contributions are welcome! Please feel free to submit issues or pull requests.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.