Multi-column operations

Skrub provides various tools to extend the use of single column transformers to multiple columns.

• Operating over multiple columns at once
  • Applying transformations to the columns with ApplyToCols and ApplyToFrame
• Removing unneeded columns with DropUninformative and Cleaner
• Applying DropUninformative only to a subset of columns
• Skrub Selectors, for selecting columns in a dataframe
  • Introduction to selectors
  • Type of selectors
  • Combining selectors
  • Using selectors with other skrub transformers
• Selecting based on dtype or data properties
• Categories of selectors
  • Selectors based on column data types
  • Selectors based on column content and properties
  • Selectors based on column names
• filter() and filter_names() to select with user-defined criteria
  • Example of custom criteria in filter(): selecting columns with outliers