ageutils provides a collection of efficient functions for working with individual ages and corresponding intervals. These include functions for efficient conversion from an age to an interval, aggregation of ages with associated counts in to intervals and the splitting of interval counts based on specified age distributions.
Note that similar functionality is/was found in the ympes package. Going forward, the intention is that this functionality will be removed from ympes in favour of this, more focussed, package.
The development version of ageutils can be installed from GitHub with:
remotes::install_github("TimTaylor/ageutils")