perspective

<br /> <a href="https://github.com/finos/perspective/blob/master/docs/static/svg/perspective-logo-light.svg?raw=true#gh-light-mode-only"><img src="https://github.com/finos/perspective/raw/master/docs/static/svg/perspective-logo-light.svg?raw=true#gh-light-mode-only" alt="Perspective" width="260"></a> <a href="https://github.com/finos/perspective/blob/master/docs/static/svg/perspective-logo-dark.svg?raw=true#gh-dark-mode-only"><img src="https://github.com/finos/perspective/raw/master/docs/static/svg/perspective-logo-dark.svg?raw=true#gh-dark-mode-only" alt="Perspective" width="260"></a> <br/><br/>

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Perspective is an <i>interactive</i> analytics and data visualization component, which is especially well-suited for <i>large</i> and/or <i>streaming</i> datasets. Use it to create user-configurable reports, dashboards, notebooks and applications, then deploy stand-alone in the browser, or in concert with Python and/or Jupyterlab.

Features

• A fast, memory efficient streaming query engine, written in C++ and compiled for both WebAssembly and Python, with read/write/streaming for Apache Arrow, and a high-performance columnar expression language based on ExprTK.

• A framework-agnostic User Interface packaged as a Custom Element, powered either in-browser via WebAssembly or virtually via WebSocket server (Python/Node).

• A JupyterLab widget and Python client library, for interactive data analysis in a notebook, as well as scalable production Voila applications.

Examples

<!-- Examples --> <table><tbody><tr><td>editable</td><td>file</td><td>fractal</td></tr><tr><td><a href="https://perspective.finos.org/block?example=editable"><img height="125" src="https://perspective.finos.org/blocks/editable/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=file"><img height="125" src="https://perspective.finos.org/blocks/file/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=fractal"><img height="125" src="https://perspective.finos.org/blocks/fractal/preview.png?"></img></a></td></tr><tr><td>market</td><td>raycasting</td><td>evictions</td></tr><tr><td><a href="https://perspective.finos.org/block?example=market"><img height="125" src="https://perspective.finos.org/blocks/market/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=raycasting"><img height="125" src="https://perspective.finos.org/blocks/raycasting/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=evictions"><img height="125" src="https://perspective.finos.org/blocks/evictions/preview.png?"></img></a></td></tr><tr><td>nypd</td><td>magic</td><td>streaming</td></tr><tr><td><a href="https://perspective.finos.org/block?example=nypd"><img height="125" src="https://perspective.finos.org/blocks/nypd/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=magic"><img height="125" src="https://perspective.finos.org/blocks/magic/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=streaming"><img height="125" src="https://perspective.finos.org/blocks/streaming/preview.png?"></img></a></td></tr><tr><td>covid</td><td>webcam</td><td>movies</td></tr><tr><td><a href="https://perspective.finos.org/block?example=covid"><img height="125" src="https://perspective.finos.org/blocks/covid/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=webcam"><img height="125" src="https://perspective.finos.org/blocks/webcam/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=movies"><img height="125" src="https://perspective.finos.org/blocks/movies/preview.png?"></img></a></td></tr><tr><td>superstore</td><td>citibike</td><td>olympics</td></tr><tr><td><a href="https://perspective.finos.org/block?example=superstore"><img height="125" src="https://perspective.finos.org/blocks/superstore/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=citibike"><img height="125" src="https://perspective.finos.org/blocks/citibike/preview.png?"></img></a></td><td><a href="https://perspective.finos.org/block?example=olympics"><img height="125" src="https://perspective.finos.org/blocks/olympics/preview.png?"></img></a></td></tr><tr><td>jupyterlab</td></tr><tr><td><a href="http://beta.mybinder.org/v2/gh/finos/perspective/master?urlpath=lab/tree/examples/jupyter-notebooks"><img height="125" src="https://perspective.finos.org/img/jupyterlab.png?"></img></a></td></tr></tbody></table> <!-- Examples -->

Documentation

• Project Site
• User Guides
  • Javascript User Guide
  • Python User Guide
  • Developer Guide
• Concepts
  • Table
  • View
  • Expression Columns
  • Data Binding
• API
  • Perspective API
  • Perspective Viewer API
  • Perspective Python API

Community / Media

• Streaming, cross-sectional data visualization in JupyterLab | Junyuan Tan, JupyterCon 2020
• Perspective in 3D | Andrew Stein, Open Source in Finance Forum NYC 2022
• Build an order book simulation with Perspective | Andrew Stein, FINOS Open Source in Fintech Meetup 2021
• Perspective project case study | FINOS