| apply_weights | Apply survey weights to data |
| clean_missing | Clean missing values in specified column |
| cross_tabulation | Generate cross-tabulation table with chi-square test |
| describe_survey | Generate comprehensive survey description |
| example_survey | Example Survey Dataset |
| frequency_table | Generate frequency table for categorical variable |
| plot_boxplot | Create publication-quality box plot |
| plot_histogram | Create publication-quality histogram |
| plot_weighted_bar | Create weighted bar plot for categorical variables |
| rake_weights | Rake survey weights to match population targets |
| remove_duplicates | Remove duplicate rows from survey data |
| standardize_categories | Standardize categorical values |
| weighted_mean | Calculate weighted mean |
| weighted_total | Calculate weighted total |