Note - I have not tested this code; I'm using other conversion tools.

user667489 is answering a question about SAS code; Ban Sun is answering a question about how to get the same functionality as some SAS code in PySpark. In PySpark, you use Window.partition functions to set up groups, and orderBy to sort within those groups.

If you choose the correct parameters, that allows you to duplicate the functionality of 'sort by groupingVar', 'set by groupingVar', and then the first. and last. properties.