datafig / Vega.jl

A Julia package for generating visualizations in Vega

Vega.jl

OSX/Linux:
pkg.julialang.org:
Windows:

Introduction

A Julia package for creating Vega visualizations. Convenience functions for common visualizations are provided, while also allowing for unlimited customization through modification of the main VegaVisualization composite type.

At a high-level, Vega.jl is designed to provide an easy-to-use library to quickly make common visualizations, while also including some of the interactivity provided as part of the Vega 2.x JavaScript library. This package also provides a declarative syntax that deviates from Grammar-of-Graphics style packages.

Installation

Pkg.add("Vega")
using Vega

Currently, an Internet connection is required to use Vega.jl through Jupyter Notebook, as the required JavaScript libraries are delivered from a CDN. Using Vega from the REPL will work without an Internet connection.

Documentation

Please see the documentation, which is rendered on-the-fly using Vega code generated from Vega.jl

TODO/Contributing

Here's the current TODO list (along with the GitHub issues); of course, any contribution, on this list or not, is greatly appreciated!

To Do:

Functions/Types:

• area, (vertical) boxplot in coord_flip!, public-facing as horizontal keyword
• annotate heatmap / marklabels! function #59
• Check inputs to set scales correctly for visualization #87
• Fill in ::VegaTransform type with actual fields
• How to layer plots? #73
• error bars/shading around lines/bars/dots, regression line #53
• How to incorporate more interactivity to hover! #70

Vega Visualizations:

• Bullet Chart #47
• Horizon #69
• Treemap
• Force
• Violin plot
• Contour
• Parallel coordinates
• Scatterplot matrix (faceting)
• Barley (Faceting)
• Diverging Stacked Bar Chart
• Polar coordinate graph
• Spiderweb graph / radial
• hexbin
• correlation plot
• cluster map

d3 Visualizations (?):

• Create a "cheater" d3 type to use charts from http://bl.ocks.org/mbostock and https://github.com/mbostock/d3/wiki/Gallery as templates?
• Add chord chart from d3.js (requested at vega/vega project)
• Hexbinning (requested at vega/vega project)
• Sankey from d3.js
• Calendar View Chart from d3.js

Maps:

• 50 United States maps
• 200 Country-level maps (?)