| col_cal_percent | create a new column which is the percentage of other columns | 
| dt_dates | Anonymized sample data | 
| dt_groups | Anonymized sample data | 
| dt_group_by | group by columns and return a summarized table | 
| dt_long | Anonymized sample data | 
| dt_missing | Anonymized sample data | 
| dt_values | Anonymized sample data | 
| fill_NA_with | Fill missing values | 
| filter_all | Filter all rows that meeting requirements | 
| filter_all_at | Filter all rows that meet requirements with selected columns | 
| filter_any | Filter any rows that meeting requirements | 
| filter_any_at | Filter any rows that meet requirements with selected columns | 
| get_row_group_by | Fetch one row from each grouped by group | 
| pivot_percent_at | Create an aggregated data table with all proportion of one selected column | 
| pivot_percent_at_multi | Create an aggragated data table with all proportion of multiple selected column | 
| reshape_longer | Reshape data frame to a longer format | 
| reshape_wider | Reshape data frame to a wider format | 
| row_expand_dates | Expand row given start and end dates | 
| row_expand_pattern | Expand row based on pattern | 
| row_percent_convert | Convert count to percentage | 
| select_cols | Select columns | 
| starwars_simple | starwars data | 
| str_split_col | Split one column to multiple columns based on patterns |