elixir-explorer/explorer

This system is a high-performance data manipulation library for Elixir, built on the Polars Rust backend. It provides a comprehensive API for creating, transforming, and analyzing DataFrames and Series, supporting a wide range of data types and operations including lazy evaluation for deferred computation. The system enables reading and writing various file formats (CSV, Parquet, IPC) and accessing remote cloud storage (S3) directly. It also includes utilities for data validation, configuration, and integration with other Elixir data science tools.

This period focused on a major architectural shift towards lazy evaluation, introducing pluggable backends and deferred computation for DataFrames and Series. The native Rust layer was significantly refactored to support these new abstractions, while dependencies were upgraded to Polars 0.52 to enable advanced query capabilities.

12 changes

This period focused on expanding the Explorer library's I/O capabilities for DataFrames and LazyFrames, adding support for formats like Parquet, IPC, and NDJSON, including cloud storage integration. Concurrently, comprehensive test coverage was added for these new and existing operations to ensure correctness and stability.

6 changes

This period focused on expanding the Series API with logarithmic and exponential transformations, while establishing a robust internal type system via the ExSeriesDtype enum. Concurrently, significant test coverage was added for Series operations and the test suite was enhanced with property-based testing and S3/Parquet integration support.

4 changes

elixir-explorer/explorer was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.