Data Import and Export
Last updated: August 19, 2020
rio package provides a simple interface for importing and exporting data through common
export() functions. File type is inferred from the file name extension.
Writing CSV files
For large datasets, use
data.table. It is much faster than
Serialization is reading/writing data frames from a file, while maintaining metadata like column type. It is similar to using
.csv as an export format, but this doesn’t maintain metadata and can be much slower.
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