| calculate_dris_by_group | Perform Grouped DRIS Diagnostics and Multi-Level Factor Filtering |
| calculate_dris_diagnostics | Calculate DRIS Functions, Individual Indices, and NBI |
| calculate_dris_norms | Calculate DRIS Ratio Norms and Select Optimal Expressions |
| calculate_mdris_diagnostics | Calculate Beverly's Modified DRIS (MDRIS) Diagnostics & Concentration Indices |
| calculate_mdris_norms | Calculate Beverly's Modified DRIS (MDRIS) Norms |
| calculate_pass_analysis | Perform Plant Analysis with Standardized Scores (PASS) with Custom Norms |
| dni_norms | DRIS Norms for PASS Analysis |
| generate_hyp_ratios_table | Calculate Optimal Nutrient Ratios for the High-Yielding Population (HYP) |
| ini_norms | Initial Norms for PASS Analysis |
| my_corn_samples | Leaf Samples for PASS Analysis |
| my_crop_data | Example Crop Dataset for DRIS and MDRIS |
| plot_dris_diverging_bar | Plot DRIS Indices as a Diverging Bar Chart |
| plot_dris_norms_wheel | Plot Tri-Axial DRIS Wheel Chart from Calibration Norms |
| split_populations | Split Plant Populations into High-Yielding (HYP) and Low-Yielding (LYP) Subpopulations |
| sufficiency_ranges | Create Sufficiency Ranges Table for Nutrients based on HYP |