Blog Archives

R’s remarkable growth

October 10, 2017
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R’s remarkable growth

Python has been getting some attention recently for its impressive growth in usage. Since both R and Python are used for data science, I sometimes get asked if R is falling by the wayside, or if R developers should switch course and learn Python. My answer to both questions is no. First, while Python is an excellent general-purpose data...

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A cRossword about R

October 6, 2017
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A cRossword about R

The members of the R Ladies DC user group put together an R-themed crossword for a recent networking event. It's a fun way to test out your R knowledge. (Click to enlarge, or download a printable version here.) If you get stuck, you can find the answers here or at the link below. And if you'd like to join...

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In case you missed it: September 2017 roundup

October 5, 2017
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In case you missed them, here are some articles from September of particular interest to R users. The mathpix package converts images of hand-drawn equations to their LaTeX equivalent. R 3.4.2 is released. Applying image featurization to the problem of classifying wood knots in lumber. Microsoft ML Server 9.2, which provides operationalization for R, is released. A roundup of...

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Introducing the Deep Learning Virtual Machine on Azure

October 4, 2017
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Introducing the Deep Learning Virtual Machine on Azure

A new member has just joined the family of Data Science Virtual Machines on Azure: The Deep Learning Virtual Machine. Like other DSVMs in the family, the Deep Learning VM is a pre-configured environment with all the tools you need for data science and AI development pre-installed. The Deep Learning VM is designed specifically for GPU-enabled instances, and comes...

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Create Powerpoint presentations from R with the OfficeR package

October 3, 2017
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Create Powerpoint presentations from R with the OfficeR package

For many of us data scientists, whatever the tools we use to conduct research or perform an analysis, our superiors are going to want the results as a Microsoft Office document. Most likely it's a Word document or a PowerPoint presentation, it probably has to follow the corporate branding guidelines to boot. The OfficeR package, by David Gohel, addresses...

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Comparing assault death rates in the US to other advanced democracies

October 2, 2017
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Comparing assault death rates in the US to other advanced democracies

In an effort to provide context to the frequent mass shootings in the United States, Kieran Healy (Associate Professor of Sociology at Duke University) created this updated chart comparing assault death rates in the US to that of 23 other advanced democracies. The chart shows the rate (per 100,000 citizens) of death caused by assaults (stabbings, gunshots, etc. by...

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Convert hand-drawn equations to LaTeX with the mathpix package

September 29, 2017
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Statistics involves a lot of mathematics, so one of the nice things about report-generation systems for R like Rmarkdown is that it makes it easy to include nicely-formatted equations by using the LaTeX syntax. So, if we want to include the density function of the Guassian Normal distribution: $$ \frac{1}{{\sigma \sqrt {2\pi } }} e^ { - \frac{ -...

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R 3.4.2 is released

September 28, 2017
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The R Core team today announced the release of R 3.4.2. This release fixes a number of minor bugs and also includes a performance improvement to the commonly-used function c when applied to vectors with a names attribute. Like all minor releases, this release is backwards compatible with prior releases in the R 3.4.x series. Binary builds of R...

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Featurizing images: the shallow end of deep learning

September 27, 2017
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Featurizing images: the shallow end of deep learning

by Bob Horton and Vanja Paunic, Microsoft AI and Research Data Group Training deep learning models from scratch requires large data sets and significant computational reources. Using pre-trained deep neural network models to extract relevant features from images allows us to build classifiers using standard machine learning approaches that work well for relatively small data sets. In this context,...

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Meet the new Microsoft R Server: Microsoft ML Server 9.2

September 26, 2017
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Microsoft R Server has received a new name and a major update: Microsoft ML Server 9.2 is now available. ML Server provides a scalable production platform for R — and now Python — programs. The basic idea is that a local client can push R or Python code and have it operationalized on the remote server. ML Server is...

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