Vega-Lite

Vega-Lite: High-Level Grammar for Visualizations

Vega-Lite is a high-level grammar for visualizations that generates complete Vega specifications. It provides a concise JSON syntax for rapidly creating visualizations to explore and analyze data sets. Vega-Lite specifications can be compiled to Vega specifications to generate interactive views.

What is Vega-Lite?

Vega-Lite is a high-level visualization grammar built on top of the Vega visualization grammar. It provides a concise, human-readable JSON syntax for creating visualizations by specifying mappings from data fields to visual channels such as x, y, color, and size.

Some key capabilities and benefits of Vega-Lite include:

• Rapid generation of visualizations with small code. Vega-Lite specifications are typically less than 100 lines of JSON.
• In-depth customization while keeping specs concise. Vega-Lite supports many types of customization for common use cases.
• Composition of visualizations. Multiple Vega-Lite graphs can be composed together into dashboards and multi-view displays.
• Generation of declarative visualization specifications. Vega-Lite specs declare what the visualization should show rather than how to achieve it.
• Publishing and sharing. Vega-Lite graphs can be readily shared, embedded online, and exported as image files.

Vega-Lite specifications are compiled to full Vega specs, which are then parsed and executed using Vega to render interactive views. This provides both high-level declarative syntax and lower-level access for customization.

Overall, Vega-Lite makes it much easier to build production-ready, customizable, publishable exploratory visualizations on top of Vega compared to using the lower-level Vega spec alone.

Vega-Lite Features

Official Links