GitHub user elbamos opened a pull request:
https://github.com/apache/incubator-zeppelin/pull/208
R Interpreter for Zeppelin
This is the initial PR for an R Interpreter for Zeppelin. There's still
some work to be done (e.g., tests), but its useable, it brings to Zeppelin
features from R like its library of statistics and machine learning packages,
as well as advanced interactive visualizations. So I'd like to open it up for
others to comment and/or become involved.
Summary:
- There are two interpreters, one emulates a REPL, the other uses knitr to
weave markdown and formatted R output. The two interpreters share a single
execution environment.
- Visualisations: Besides R's own graphics, this also supports interactive
visualizations with googleVis and rCharts. I am working on htmlwidgets (almost
done) with the author of that package, and a next-step project is to get
Shiny/ggvis working. Sometimes, a visualization won't load until the page is
reloaded. I'm not sure why this is.
- Licensing: To talk to R, this integrates code forked from rScala.
rScala was released with a BSD-license option, and the author's permission was
obtained.
- Spark: Getting R to share a single spark context with the Spark
interpreter group is going to be a project. For right now, the R interpreters
live in their own "r" interpreter group, and new spark contexts are created on
startup.
- Zeppelin Context: Not yet integrated, in significant part because
there's no ZeppelinContext to talk to until it lives in the Spark interpreter
group.
- Documentation: A notebook is included that demonstrates what the
interpreter does and how to use it.
- Tests: Working on it...
P.S.: This is my first PR on a project of this size; let me know what I
messed up and I'll try to fix it ASAP.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/elbamos/incubator-zeppelin rinterpreter
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-zeppelin/pull/208.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #208
----
commit b416544c7ddc1c1ceb5316a53a69234a1e1a33f4
Author: elbamos <amos.elb...@me.com>
Date: 2015-08-13T06:49:07Z
This is the initial commit for an R Interpreter for Zeppelin
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