developer-roadmap/roadmaps/r/content/data-tables@SCW3xD7wCf3_ruTtxBkAX.md

Data Tables

A data table is the structure provided by the data.table package, built specifically for fast, memory-efficient operations on large datasets. It extends the data frame with a more concise syntax and internal optimizations that make filtering, grouping, and joining noticeably faster on big data. Many R users learn dplyr first and pick up data tables specifically when performance on large datasets becomes a bottleneck.

Visit the following resources to learn more:

• @article@Introduction to data.table
• @article@DT: An R interface to the DataTables library
• @video@data.table Package in R