Bryan Van de Ven bryanv@continuum.io @bryvdv EuroSciPy 2015 Story Time with Bokeh

Callback for sophisticated static documents New tools and annotations • lasso, poly, and point selections • crosshair inspector • hover tool for lines • h/v spans Improved visual design Docs! • 100% complete reference guide • all new expanded user guide RBokeh Prologue

Present Day

Today Setting the Stage

Today Setting the Stage

Today Makes the Dream Work Damian Luke Bryan Sara Fabio Mateusz Havoc Almar Peter Nick Kevin Maggie Sarah

Static Documents, Dynamic Interaction Today http://nbviewer.ipython.org/github/bokeh/bokeh-notebooks/blob/master/tutorial/00 - intro.ipynb#Interaction

Static Documents, Dynamic Interaction Today JS Callbacks extend capability now, for a marginal cost (a few lines of JS) Will encapsulate common patterns as they are discovered (no more JS!) A dream: write callbacks in Python, translate automatically See the new User’s Guide for much more info: http://bokeh.pydata.org/en/latest/docs/user_guide/interaction.html

Spectrogram Remixed https://www.youtube.com/watch?v=L6p7Cd3uDis Today

Spectrogram Remixed Completely customizable visual styling and templating Performance enhancements (smoother and faster updates) Mostly written in python (previously lots of frontend Javascript) Today

Fraud and falsehood… https://www.youtube.com/watch?v=0qGSmDeEQ6Y Today

…only dread examination • Identify fraudulent market manipulation activity from a variety of potential sources on the web (Twitter, Facebook, SPAM, forum posts). • Correlate that against "legitimate" market activity, SEC Filings, News and Press Releases, and other market activity. FEAT (Financial Event Analysis Tool) is being evaluated by us.gov in order to Uses only out-of the box features of Bokeh 0.9.3 Today

Oceans in the Cloud Today

Oceans in the Cloud Today (Small) code you can actually run today Still too much JS (but working on it) Tornado(+Dask) server written in 15 minutes Uses recent AjaxDataSource

Speaking of Dask Today Generates .dot file for execution graphs Data was converted to Bokeh glyphs Will enable “live monitoring” for Dask http://dask.pydata.org/en/latest/

• LaTeX annotations (KaTeX) • SVG output (MPL or Cairo backend) • New Charts / Faceting (in progress) • Validation (started in 0.9.1) To be continued…

Tomorrow Bokeh Authoring https://www.youtube.com/watch?v=VOAXC7XUCto

Tomorrow Bokeh Theming

Tomorrow Bokeh Server-ing Simplify and narrow the focus of the Bokeh Server (less is more) Extensible facility for reflective, persistent RPC Only pay in size for features you use (shrink BokehJS) Create custom models and widgets (a platform for anyone to extend)

• R (Trelliscope), Scala, JS (Angular, React) • WebGL backend (underway) • 1.0 • LaTeX annotations (KaTeX) • SVG output (MPL or Cairo backend) • New Charts / Faceting (in progress) • Validation (started in 0.9.1) • Bokeh App Authoring, Theming • Server revamp, Extensibility To be continued…
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Call to Action Install Bokeh and provide feedback • BSD license for everything (JS, Python, server) • https://github.com/Bokeh/bokeh Engage us to work on custom apps and dashboards • Code integration, analytical and visualization expertise • Feedback helps the open source efforts

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