December 2015

Data Manipulation in R with dplyr – Part 2

December 18, 2015 | Anirudh

Note that this post is in continuation with Part 1 of this series of posts on data manipulation with dplyr in R. The code in this post carries forward from the variables / objects defined in Part 1. In the previous post, I talked about how dplyr provides a grammar of sorts to ... [Read more...]

Exploring New and Used Car Data in Malaysia

December 17, 2015 | Abdalla

I came across a local website where individuals/dealers in Malaysia can post information on used and new cars that they are selling. Why i, in particular, would browse such a site might dumbfound some people (those who personally know me would … Continue reading →
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Exploring New and Used Car Data in Malaysia

December 17, 2015 | screenshotguy

I came across a local website where individuals/dealers in Malaysia can post information on used and new cars that they are selling. Why i, in particular, would browse such a site might dumbfound some people (those who personally know me would … Continue reading →
[Read more...]

Anomaly Detection in R

December 17, 2015 | Pablo C.

Introduction Inspired by this Netflix post, I decided to write a post based on this topic using R. There are several nice packages to achieve this goal, the one we´re going to review is AnomalyDetection. Download full -and tiny- R code of this post here. Normal Vs. Abnormal The ... [Read more...]

Le Monde puzzle [#939bis]

December 17, 2015 | xi'an

If you remember the previous post, I had two interpretations about Le Monde mathematical puzzle #639: Find all integers with less than 11 digits that are perfect squares and can be written as a(a+6), a being an integer. and: Find all integers with less than 11 digits that are perfect squares and ...
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Tutorial: Data Science with SQL Server R Services

December 17, 2015 | David Smith

You may have heard that R and the big-data RevoScaleR package have been integrated with with SQL Server 2016 as SQL Server R Services. If you've been wanting to try out R with SQL Server but haven't been sure where to start, a new MSDN tutorial will take you through all ... [Read more...]

Data Manipulation in R with dplyr – Part 1

December 17, 2015 | Anirudh

dplyr is one of the packages in R that makes R so loved by data scientists. It has three main goals: Identify the most important data manipulation tools needed for data analysis and make them easy to use in R. Provide blazing fast performance for in-memory data by writing key ... [Read more...]

RStudio Clone for Python – Rodeo

December 17, 2015 | Tony Hirst

So have you been looking for something like RStudio, but for Python? It’s been out for some time, but a recently updated release of Rodeo gives an increasingly workable RStudio-like environment for Python users. The layout resembles the RStudio layout – file editor top left, interactive console bottom left, variable ...
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NZ’s Shifting Makeup

December 17, 2015 | Andrew Worsley

New Zealand is culturally diverse. Even at a regional level, there are big differences in ethnic composition… and with an increasingly inter-connected world, ethnic composition is expected to change substantially in the future, particularly in Auckland. Statistics New Zealand has provided us with sub-national ethnic population projections, by age and ...
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RcppArmadillo 0.6.400.2.2

December 16, 2015 | Thinking inside the box

And yet another updated of Armadillo by Conrad bringing us to 6.400.2. I folded that yesterday into RcppArmadillo 0.6.400.2.2; and this is now on CRAN and Debian. There was even an interim-CRAN-only release 0.6.300.2.2 with a refinement for tests of imcompleye LAPACK libraries---which we encounter whenver R is build with its own (partial) ... [Read more...]

R / Shiny User Survey

December 16, 2015 | C

I have been using R for a few years and have been amazed at the variety of people who use the language.  R has an unusually diverse and creative community.   If you are an R user, I would really like to learn a bit more about how you use R ... [Read more...]
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