Cross-validation for a list of tables: split_cv() | Cross-validation inside a nested table: nest_cv()

Descriptive statistics by group: desc_stats() | Top / bottom X% per group: top_perc() | Format numbers for reports: format_digits()

The loop in five steps | Design principles

Read many Excel workbooks: import_xlsx() | Read many CSV files: import_csv() | Write tables back to Excel: export_xlsx() | Write a nested table to folders: export_nest() | Write a list of tables to files: export_list()

Wide to long, nested: w2l_nest() | Wide to long, split into a list: w2l_split() | All pairs of columns: c2p_nest() | Levels of a column side by side: r2p_nest()

Parts of file paths: get_path_info() | Example files: mintyr_example() | List example files: mintyr_examples()