Mixed-granularity data analysis is not specific to forecasting, and so these functions are better placed in the {tsibble} package (rather than {fabletools}. The fabletools package has provided aggregate_key() for a while, although it has never released a version with aggregate_index(). The aggregate_index() function will be powered by the mixed granularity temporal manipulation tools in {mixtime}.
Mixed-granularity data analysis is not specific to forecasting, and so these functions are better placed in the
{tsibble}package (rather than{fabletools}. The fabletools package has providedaggregate_key()for a while, although it has never released a version withaggregate_index(). Theaggregate_index()function will be powered by the mixed granularity temporal manipulation tools in{mixtime}.