GitHub - javascriptdata/danfojs: Danfo.js is an open source, JavaScript library providing high performance, intuitive, and easy to use data structures for manipulating and processing structured data.
Danfo.js is fast and supports Tensorflow.js tensors out of the box. This means you can convert Danfo data structure to Tensors. Easy handling of missing-data (represented as NaN) in floating point as well as non-floating point data Size mutability: columns can be inserted/deleted from DataFrame Automatic and explicit alignment: objects can be explicitly aligned to a set of labels, or the user can
GitHub - cube-js/cube: 📊 Cube Core is open-source semantic layer for AI, BI and embedded analytics
Website • Docs • Examples • Blog • Slack • X Cube Core is the open-source semantic layer. Define metrics, dimensions, joins, and access rules once in code, then expose them through SQL, REST, and GraphQL APIs to anything downstream — BI tools, custom applications, or AI agents. Cube Core is headless: it doesn't ship a UI, so you can build the analytics experience that fits your product. Cube Core
GitHub - automerge/automerge: A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.
Automerge is a library which provides fast implementations of several different CRDTs, a compact compression format for these CRDTs, and a sync protocol for efficiently transmitting those changes over the network. The objective of the project is to support local-first applications in the same way that relational databases support server applications - by providing mechanisms for persistence which
Observable Notebooks: Fast data exploration and prototyping
Observable’s reactive JavaScript notebooks are uniquely suited for interactive data visualization, animation, learning, and experimentation. Plot.plot({ padding: 0, color: { pivot: d3.mean(seattle, d => d.temp_max), legend: true, scheme: "BuRd" }, y: {tickFormat: Plot.formatMonth("en", "short")}, marks: [ Plot.cell(seattle, Plot.group({fill: "max"}, { x: (d) => d.date.getUTCDate(), y: (d) => d.dat
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GitHub - data-forge/data-forge-ts: The JavaScript data transformation and analysis toolkit inspired by Pandas and LINQ.
GitHub - aweary/tinytime: ⏰ A straightforward date and time formatter in <1kb