7 Apr
2014
7 Apr
'14
11:02 a.m.
****NEW LOCATION****
Date: Friday, April 11, 2014
Location: Northwest Building Room B-101, 52 Oxford Street
Speaker: Hadley Wickham, Chief Scientist of RStudio; Assistant Professor of Statistics,
Rice University
Time: Informal lunch with speaker, 12:30pm. Talk, 1:00pm
Title: Expressing Yourself in R
Abstract:
There are three main time sinks in any data analysis:
1. Figuring out what you want to do.
2. Turning a vague goal into a precise set of tasks (i.e. programming).
3. Actually crunching the numbers.
A well-designed domain specific language (or DSL) tightly coupled to the problem domain
can make all three pieces faster. In this talk, I’ll discuss two DSLs built in R: ggvis
for visualisation and dplyr for data manipulation. These build on my previous packages
ggplot2 and plyr, improving both expressivity and speed.
Data visualisation and manipulation are key parts of data analysis. ggvis makes it easy to
declaratively describe interactive web graphics. It combines a declarative syntax based on
ggplot2 with shiny’s reactive programming model and vega’s declarative JS rendering
system. dplyr implements the most important verbs of data manipulation in a
datastore-agnostic fashion, so you can think about and compute with your data in the same
way regardless of whether you’re working with a local in-memory data frame or a remote
on-disk database.
Co-sponsored by the Harvard School of Public Health (Biostatistics Dept).
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Speaker bio:
Hadley Wickham is Chief Scientist at RStudio and Adjunct Professor of Statistics at Rice
University. He's interested in building tools (computational and cognitive) that make
data preparation, manipulation, visualization and analysis easier. He's developed
over 30 R packages, for data analysis (ggplot2, plyr, reshape), making frustrating parts
of R easier to use (lubridate for dates, stringr for strings, httr for accessing web
APIs), and for streamlining the R package development process (roxygen2, testthat,
devtools, lineprof, staticdocs).
***********************
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