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Tuesday, June 28 • 2:30pm - 3:30pm
RCAP Designer: An RCloud Package to create Analytical Dashboards

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Poster #25

RCloud is an open source social coding environment for Big Data analytics and visualization developed by AT&T labs. We discuss RCAP Designer, an RCloud package that provides a way for Data Scientists to build R web applications similar to Shiny in the RStudio environment.

RCAP designer creates a workflow where the source R code is created within the RCloud environment in an R notebook. The package allows the data scientist to transform this notebook into an R dashboard application. This does not require developing web code (JavaScript, CSS, etc.). A number of widgets have been developed for creating the page design, several kinds of contents (R plots, interactive plots, an iframe, etc) and the different event controls for the page. For example, to include an R plot, one would drag and drop the RPlot widget onto the canvas. After the appropriate sizing of the plot window, the widget is configured to select the R plot function from the current workspace, and automatically link it to the control parameters. Once the design elements are saved, RCAP uses RCloud to render the page on the fly.

High level RCAP design considerations: On the server (R) side, RCAP produces the appropriate wrapping for the user’s R code with the necessary templates to push the results back to the client side. This includes all of the RCloud commands and various error catching mechanisms. These wrapped functions are exposed to the JavaScript via OCAP. The user can just do normal plotting code and RCAP makes sure it appears on the page. The JavaScript supplied by the widgets is in charge of the layout. It lays out the grid, loads the text, iframes and any other static content. The event controller widgets in RCAP use the reactive programming paradigm.RCAP is a statistician’s convenient web publishing tool for R analytics and visualizations developed within the RCloud environment.

References:
Subramaniam. G, Larchuk. T, Urbanek. S and Archibad. R (2014). iwplot: An R Package for Creating web Based Interactive. In useR! 2014, The R User Conference, (UCLA, USA), Jul. 2014
Woodhull. G, RCloud – Integrating Exploratory Visualization, Analysis and Deployment. In useR! 2014, The R User Conference, (UCLA, USA), Jul. 2014
R Development Core Team (2008). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, URL: http://www.R-project.org.
RStudio, Inc, shiny: Easy web applications in R, 2014, URL: http://shiny.rstudio.com

Speakers
avatar for Ganesh K Subramaniam

Ganesh K Subramaniam

AT&T Labs - Research


Tuesday June 28, 2016 2:30pm - 3:30pm
Sponsor Pavilion 326 Galvez Street Stanford, CA 94305-6105

Attendees (29)