| as_long | Extract the tidy long form of a listc_table |
| as_wide | Extract the wide (row x column layout) form of a listc_table |
| lst_above | Add an above-cutoff indicator variable |
| lst_classify | Classify a variable into proficiency levels by cut scores |
| lst_config | Read and validate a LISTC run configuration |
| lst_config_template | Copy the Excel configuration template to a writable location |
| lst_data | Create a listc_data object |
| lst_derive | Add arbitrary derived variables (mutate-style) |
| lst_interpret | Rule-based plain-language interpretation of a listc_table |
| lst_join_person | Join person parameters onto a listc_data by id |
| lst_run | One-shot entry point: run a full LISTC analysis from a configuration |
| lst_table | Build a pivot-style statistical table |
| lst_to_excel | Export listc_table(s) to a formatted Excel workbook |
| lst_to_html | Export listc_table(s) as a standalone styled HTML report |
| lst_to_json | Export listc_table(s) as machine-readable JSON (for AI agents) |
| lst_validate | Validate a listc_data object |
| read_conquest_person | Read ConQuest person estimate output (WLE/EAP tables) |
| read_listc | Read sample data from common file formats |
| read_winsteps_pfile | Read a Winsteps PFILE (person parameter file) |
| st_count | Count and weighted-count statistics |
| st_level_prop | Proportions in proficiency levels |
| st_mean | Weighted mean statistic |
| st_option_dist | Weighted item option distribution (including missing rate) |
| st_prop_above | Proportion above a cutoff |
| st_pvalue | Weighted item p-value (proportion correct / mean score rate) |
| st_quantile | Weighted quantile statistic |
| st_sd | Weighted standard deviation |
| st_wcount | Count and weighted-count statistics |