As a pipeline toolkit for Statistics and data science in R,
the 'targets' package brings together function-oriented programming and
'Make'-like declarative workflows.
It analyzes the dependency relationships among the tasks of a workflow,
skips steps that are already up to date, runs the necessary
computation with optional parallel workers, abstracts files as
R objects, and provides tangible evidence that the results match
the underlying code and data. The methodology in this package
borrows from GNU 'Make' (2015, ISBN:978-9881443519)
and 'drake' (2018,