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Utiliza lógica de unión para identificar filas que existen solo en una tabla o que se superponen entre tablas sin fusionar columnas.
Distinto de las operaciones de unión de tablas: Se centra en el uso de uniones para filtrar/subconjuntos en lugar de combinar columnas de múltiples tablas.
Explore 1 awesome GitHub repository matching data & databases · Filtrado de filas basado en uniones. Refine with filters or upvote what's useful.
This project is a high-performance tabular data processing framework for R, designed to handle massive datasets with memory efficiency and speed. It provides an enhanced data structure that utilizes reference semantics and in-place modification to perform complex transformations without the overhead of unnecessary object copying. The library distinguishes itself through its low-level architectural optimizations, including multi-threaded parallel processing, radix-based sorting, and memory-mapped file parsing. By offloading critical data manipulation and aggregation routines to compiled C code
Identifies rows that only exist in one table or overlap between two tables without combining columns.