This website is for Vega-Altair v4. Go to the main Vega-Altair homepage for the latest release.

4.2.2

Getting Started

Overview
Installation
Dependencies
Development Install
Basic Statistical Visualization

Gallery

Example Gallery

User Guide

Specifying Data in Altair
Encodings
Marks
Data Transformations
Bindings, Selections, Conditions: Making Charts Interactive
Top-Level Chart Configuration
Compound Charts: Layer, HConcat, VConcat, Repeat, Facet
Scale and Guide Resolution
Saving Altair Charts
Customizing Visualizations
Times and Dates in Altair
Frequently Asked Questions
Display Troubleshooting
Altair Internals: Understanding the Library
API Reference
Altair Ecosystem

Case Studies

Exploring Seattle Weather

Advanced Usage

Importing Vega & Vega-Lite Versions
Displaying Altair Charts
Renderer API
Customizing Renderers
Data transformers

Release Notes

Altair Change Log

Altair

»
API Reference »
altair.value
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altair.value

altair.value(value, **kwargs): Specify a value for use in an encoding

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