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A pipeline toolkit for Statistics and data science in R, the targets package brings function-oriented programming to Make-like declarative pipelines. targets orchestrates a pipeline as a graph of dependencies, skips steps that are already up to date, runs the necessary computations with optional parallel workers, abstracts files as R objects, and provides tangible evidence that the results are reproducible given the underlying code and data. The methodology in this package borrows from GNU Make (2015, ISBN:978-9881443519) and drake (2018, doi:10.21105/joss.00550 ).

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