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_ Learning Center Home

Applications

Currently, VICE apps are categorized as:

  1. Integrated Development Environments (IDE) (e.g., _ _)
  2. Interactive Apps (e.g., Shiny, WebGL, HTML5)
  3. Virtual Desktop Environment (e.g., Ubuntu Desktops w/ Apache Guacamole, VNC, Xpra)

1. What is JupyterLab?

JupyterLab is an interactive development environment for working with notebooks, code and data.

JupyterLab enables you to use text editors, terminals, file viewers, and other custom components side-by-side with notebooks in a tabbed work area. JupyterLab provides a high level of integration between notebooks, documents, and activities:

  • Drag-and-drop to reorder notebook cells and copy them between notebooks
  • Run code blocks interactively from text files (.py, .R, .md, .tex, etc.)
  • Link a code console to a notebook kernel to explore code interactively without cluttering up the notebook with temporary scratch work
  • Edit popular file formats with live preview, such as Markdown, JSON, CSV, Vega, VegaLite, and more

1.1 What is a Jupyter Notebook?

The Notebook (formerly IPython Notebook) is Project Jupyter's flagship project for creating reproducible computational narratives.

It enables users to create and share documents that combine live code with narrative text, mathematical equations, visualizations, interactive controls, and other rich output.

Notebook documents (or “notebooks”) are documents produced by the Jupyter Notebook App, which contains both computer code (e.g., python, r, julia) and rich text elements (paragraph, equations, figures, comments, images, links, etc.).

1.2 JupyterLab VICE

The apps are based on official integrated into the CyVerse Discovery Environemnt (DE).

2. What is RStudio?

RStudio is a free and open source integrated development environment for R, a programming language for statistical computing and graphics. Some of its features include:

  • Customizable workbench with all of the tools required to work with R in one place (console, source, plots, workspace, help, history, etc.)
  • Syntax highlighting editor with code completion
  • Execute code directly from the source editor (line, selection, or file)
  • Full support for authoring Sweave and TeX documents
  • Runs on all major platforms (Windows, Mac, and Linux) and can also be run as a server, enabling multiple users to access the RStudio IDE using a web browser

2.1 RStudio VICE

The apps are based on official .

3. What is Shiny?

Shiny is an open source R package that provides an elegant and powerful web framework for building web applications using R. Shiny helps you turn your analyses into interactive web applications without requiring HTML, CSS, or JavaScript knowledge. Some of its features include:

  • Build useful web applications with only a few lines of code—no JavaScript required
  • Shiny applications are automatically “live” in the same way that spreadsheets are live. Outputs change instantly as users modify inputs, without requiring you to reload your browser
  • Shiny user interfaces can be built entirely using R, or can be written directly in HTML, CSS, and JavaScript for more flexibility
  • Works in any R environment (Console R, Rgui for Windows or Mac, ESS, StatET, RStudio, etc.)
  • Attractive default UI theme based on Twitter Bootstrap
  • A highly customizable slider widget with built-in support for animation
  • Pre-built output widgets for displaying plots, tables, and printed output of R objects
  • Fast bidirectional communication between the web browser and R using the websockets package
  • Uses a reactive programming model that eliminates messy event handling code, so you can focus on the code that really matters
  • Develop and redistribute your own Shiny widgets that other developers can easily drop into their own applications

3.1 Shiny VICE

The apps are based on official .

Shiny Apps require the contents of a Shiny App be added as an input folder prior to launching a VICE app - otherwise the default Shiny App demo will be the only contents in the container.

Customized Shiny Apps can be created and deployed using the Tool and App builder.

4. What is Ubuntu Desktop?

The Ubuntu Desktop has a full Guacamole installation and Ubuntu XFCE desktop. This allows users to have a simple all-in-one desktop through their web browser. Users can run any interactive or visualization tool that can run on the most recent linux distros. Solutions to support the inevitable array of linux applications that user will want. Potential options include:

  • Separate image per application
  • Network fs (e.g. NFS, Ceph, etc) containing all applications
  • Per-application network fs
  • On-demand installation of application via script/ansible

4.1 Ubuntu Desktop VICE

Linux Desktops using Apache Guacamole, and Xpra have been integrated into the DE.

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