2 repositorios
Recuperación de filas y columnas específicas basadas en condiciones lógicas, claves o nombres de variables.
Nota distintiva: Los candidatos de la lista corta se centran en diseño de UI, acceso de seguridad o impresión; esto trata sobre la creación programática de subconjuntos de datos.
Explore 2 awesome GitHub repositories matching data & databases · Subconjuntos lógicos de tablas. 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
Retrieves specific rows and columns based on logical conditions, keys, or variable names.
Tablesaw is a Java dataframe library designed for manipulating, filtering, and aggregating structured data. It serves as a toolkit for statistical analysis, data visualization, and machine learning execution within the Java Virtual Machine. The project provides specialized tools for computing descriptive statistics and generating cross-tabulations. It includes a visualization library for creating histograms and scatter plots, as well as a framework for executing linear regression, clustering, and classification tasks through integration with statistical libraries. The library covers a broad
Extracts subsets of tables or columns using boolean logic and bitmap selections to isolate records.