ScalaPlotLib is a small, type-oriented library for creating plots. It wraps JFreeChart
in a (hopefully) nice API. It's intended for easily creating decent plots in REPL and notebook environments, and
supports Apache Spark out-of-the-box (don't worry - it's a provided dependency, so if you
don't use it, it won't affect you!)
Here's a quick example to give you an idea of how it's used:
// some fake data
private val data = Stream.iterate((0, 0.0, 0.0)) {
case (x, y1, y2) => (x + 1, y1 + nextGaussian(), y2 + nextGaussian())
}.take(100).toSeq
Chart("Line", Line)
.data(data)
.domain("X")(_._1)
.rangeAxis("Y")
.range("Y1")(_._2)
.range("Y2")(_._3)
.show()
There is a whole page of examples, and documentation is forthcoming!
- Documentation!
- Publish to Sonatype
- More plots (some of these will be easy, others won't)
- Time series, Gantt, and waterfall plots (using
Dateandjava.time._domains) - Pie charts (I never use them, but it's obligatory!)
- 3D surface plots (not supported by JFreeChart, but we can add it here!)
- Bubble charts
- Density plots (density blocks are supported by JFC, but we can add better ones even)
- Candlestick / OLHC
- Time series, Gantt, and waterfall plots (using
- Better stat plot API / aggregation API
- Vegas - a comprehensive plotting library using a JavaScript (vega-lite + D3) front-end
- scala-chart - another Scala layer over JFreeChart, but with slightly different goals
- scalaplot - an XY-focused plotting library supporting multiple front-ends
TBD. JFreeChart is LGPL3, JFreeSVG is GPL3. I'd like to do MIT or Apache, but I have to figure out if I'm allowed to given the (binary, unpackaged) dependencies on JFree libraries.