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by Joseph Rickert

The model table on the caret package website lists more that 200 variations of predictive analytics models that are available withing the caret framework. All of these models may be prepared, tuned, fit and evaluated with a common set of caret functions. All on its own, the table is an impressive testament to the utility and scope of the R language as data science tool. 

Microsoft Cognitive Services, the machine-intelligence service formerly known as Project Oxford, provides a suite of cloud-based APIs useful for any developer that wants to include vision, face-recognition, speech recognition, or any of a raft of "AI"-like capabilities into software.

by John Mount Ph. D.
Data Scientist at Win-Vector LLC

In her series on principal components analysis for regression in R, Win-Vector LLC's Dr. Nina Zumel broke the demonstration down into the following pieces:

This short video (via Vox) presents the entire history of Japan (yes, since the dawn of man on the islands!) without pausing for breath, and it's hilarious:


Recently, I wrote about how it's possible to use predictive models to predict when an airline engine will require maintenance, and use that prediction to avoid unpleasant (and expensive!) delays for passengers on the ground. Planes generate a lot of data that can be used to make such predictions: today’s engines have hundreds of sensors and signals that transmit gigabytes of data for each flight.

Unlike most other statistical software packages, R doesn't have a native data file format. You can certainly import and export data in any number of formats, but there's no native "R data file format". The closest equivalent is the saveRDS/loadRDS function pair, which allows you to serialize an R object to a file and then load it back into a later R session. But these files don't hew to a standardized format (it's essentially a dump of R in-memory representation of the object), and so you can't read the data with any software other than R.

This marble-based Rube Goldberg machine video is strangely compelling: it's simply made, but full of lots of elegant little flourishes, like the uphill "cannon" made of several magetic balls. The magnetic marbles behind many of the tricks are no longer available (they're very dangerous if swallowed), which I guess is a win for safety ... but just look what you can do with them: