We present fplyr, a new package for the R language to deal with big files. It allows users to easily implement the split-apply-combine strategy for files that are too big to fit into the available memory, without relying on data bases nor introducing non-native R classes. A custom function can be applied independently to each group of observations, and the results may be either returned or directly printed to one or more output files.
@article{arxiv.2005.04711,
title = {fplyr: the split-apply-combine strategy for big data in R},
author = {Federico Marotta},
journal= {arXiv preprint arXiv:2005.04711},
year = {2020}
}