May 2017

RInside 0.2.14

May 7, 2017 | Thinking inside the box

A new release 0.2.14 of RInside is now on CRAN and in Debian. RInside provides a set of convenience classes which facilitate embedding of R inside of C++ applications and programs, using the classes and functions provided by Rcpp. It has been nearly two years since the last release, and a ... [Read more...]

dplyr in Context

May 6, 2017 | John Mount

Introduction Beginning R users often come to the false impression that the popular packages dplyr and tidyr are both all of R and sui generis inventions (in that they might be unprecedented and there might no other reasonable way to get the same effects in R). These packages and their ...
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Overdispersion tests in #rstats

May 6, 2017 | lortie

A brief note on overdispersion Assumptions Poisson distribution assume variance is equal to the mean. Quasi-poisson model assumes variance is a linear function of mean. Negative binomial model assumes variance is a quadratic function of the mean. rstats implementation #to test you need to fit a poisson GLM then apply ...
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R Weekly Bulletin Vol – VII

May 6, 2017 | R programming

This week’s R bulletin will cover topics like how to create a sequence of dates, how to add a number to a date and time variable and converting a date in American format to a standard format. Hope you like this R weekly bulletin. Enjoy reading! Shortcut Keys 1. Run ...
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Shiny Application Layouts Exercises (Part-4)

May 6, 2017 | Euthymios Kasvikis

Shiny Application Layouts – Navbar Page Features In the fourth part of our series we will see some of the most important features that a Navbar page provides in order to enhance the appearance of our shiny application. We will use the “Cars” app which we built in Shiny Application Layouts-Navbar ... [Read more...]

x13binary 1.1.39-1

May 6, 2017 | Thinking inside the box

The US Census Bureau released a new build 1.1.39 of their X-13ARIMA-SEATS program, released as binary and source. So Christoph and went to work and updated our x13binary package on CRAN. The x13binary package takes the pain out of installing X-13ARIM... [Read more...]

Scrapeover Friday — a.k.a. Another R Scraping Makeover

May 5, 2017 | hrbrmstr

I caught a glimpse of a tweet by @dataandme on Friday: Using R & rvest to explore Malaysian property mkt: "Web Scraping: The Sequel, Propwall.my" https://t.co/daZOOJJfPN #rstats #rvest pic.twitter.com/u6QMhm4M3e— Mara Averick (@dataandme) May 5, 2017 Mara is — without a doubt — the best data ... [Read more...]

A note on AIC scores for quasi-families in #rstats

May 5, 2017 | lortie

A summary note on recent set of #rstats discoveries in estimating AIC scores to better understand a quasipoisson family in GLMS relative to treating data as poisson. Conceptual GLM workflow rules/guidelines Data are best untransformed. Fit better model to data. Select your data structure to match purpose with statistical ... [Read more...]

About identifiability and granularity

May 5, 2017 | Dr. Michael Green

Motivation for this post In time series modeling you typically run into issues concerning complexity versus utility. What I mean by that is that there may be questions you need the answer to but are afraid of the model complexity that comes along with it. This fear of complexity is ... [Read more...]

10 reasons to attend EARL

May 5, 2017 | Karis Bouher

The reasons someone might attend a conferences differ from person to person so we crowdsourced the top 10 reasons you should attend EARL San Francisco. 1. Learn something new. This is a pretty obvious one and we’ve got an excellent … Continue reading → [Read more...]

Forecasting: ARIMAX Model Exercises (Part-5)

May 5, 2017 | Kostiantyn Kravchuk

The standard ARIMA (autoregressive integrated moving average) model allows to make forecasts based only on the past values of the forecast variable. The model assumes that future values of a variable linearly depend on its past values, as well as on the values of past (stochastic) shocks. The ARIMAX model ... [Read more...]

Analyse des tweets du débat d’entre-deux-tours

May 5, 2017 | Alexis

Emmanuel Macron et Marine Le Pen se sont affrontés lors du débat de l’entre-deux-tours mercredi dernier. Ce débat télévisé suivi par près de 16 millions de téléspectateurs a été l’occasion pour moi de tester le package « TwitteR » qui permet de ré...
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