Genetic Art Introduction Video
Nina and I are cleaning up websites, links, and projects. I would like to take the opportunity re-share my old genetic art project through a short demonstration video. Read more about the Genetic Art Project here.
knotEd: Knot Diagram Editing Software
I’d like to share a video of my old knot editing software in action. Read more about KnotEd here.
Y-Conditionally Regularized Neural Nets
Win Vector LLC’s Dr. Nina Zumel has had great success applying y-aware methods to machine learning problems, and working out the detailed cross-validation methods needed to make y-aware procedures safe. I thought I would try our hand at y-aware neural net or deep learning methods here.
wrapr 2.0.0 up on CRAN
wrapr 2.0.0 is now up on CRAN. This means the := variant of unpack[] is now easy to install. Please give it a try!
Version Control is a Time Machine That Translates Common Hindsight Into Valuable Foresight
For data science projects I recommend using source control or version control, and committing changes at a very fine level of granularity. This means checking in possibly broken code, and the possibly weak commit messages (so when working in a shared project, you may want a private branch or second […]
Controlling Data Layout With cdata
Here is an example how easy it is to use cdata to re-layout your data. Tim Morris recently tweeted the following problem (corrected). Please will you take pity on me #rstats folks? I only want to reshape two variables x & y from wide to long! Starting with: d xa […]
Operator Notation for Data Transforms
As of cdata version 1.0.8 cdata implements an operator notation for data transform. The idea is simple, yet powerful.
How cdata Control Table Data Transforms Work
With all of the excitement surrounding cdata style control table based data transforms (the cdata ideas being named as the “replacements” for tidyr‘s current methodology, by the tidyr authors themselves!) I thought I would take a moment to describe how they work.
More on Macros in R
Recently ran into something interesting in the R macros/quasi-quotation/substitution/syntax front: Romain François: “.@_lionelhenry reveals planned double curly syntax At #satRdayParis as a possible replacement, addition to !! and enquo()” It appears !! is no longer the last word in substitution (it certainly wasn’t the first).
Getting Started With rquery
To make getting started with rquery (an advanced query generator for R) easier we have re-worked the package README for various data-sources (including SparkR!).
