ubeR: A Package for the Uber API

August 31, 2016
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ubeR: A Package for the Uber API

Uber exposes an extensive API for interacting with their service. ubeR is a R package for working with that API which Arthur Wu and I put together during a Hackathon at iXperience. Installation The package is currently hosted on GitHub. Installation is simple using the devtools package. Authentication To work with the API you’ll need The post

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The R community is awesome (and fast)

August 30, 2016
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Recently I whined/whinged or generally complained about a few sharp edges in some powerful R systems. In each case I was treated very politely, listened to, and actually got fixes back in a very short timeframe from volunteers. That is really great and probably one of the many reasons R is a great ecosystem. Please … Continue...

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Florid’AISTATS

August 30, 2016
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Florid’AISTATS

The next AISTATS conference is taking place in Florida, Fort Lauderdale, on April 20-22. (The website keeps the same address one conference after another, which means all my links to the AISTATS 2016 conference in Cadiz are no longer valid. And that the above sunset from Florida is named… cadiz.jpg!) The deadline for paper submission

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2016-11 The Butterfly Affectation

August 30, 2016
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This report documents a variety of approaches to including an external vector image within an R plot. The image presents particular challenges because it contains features that are not natively supported by the R graphics system, which makes it hard … Continue reading →

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R Courses at London, Leeds and Newcastle

August 30, 2016
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R Courses at London, Leeds and Newcastle

Over the next few months we’re running a number of R courses at London, Leeds and Newcastle. September 2016 (Newcastle) Sept 12th: Introduction to R Sept 13th: Statistical modelling Sept 14th: Programming with R Sept 15th: Efficient R: speeding up your code Sept 16th: Advanced graphics October 2016 (London) Oct 3rd: Introduction to R Oct 4th:

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10 featured R jobs from around the world (2016-08-30)

August 30, 2016
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10 featured R jobs from around the world (2016-08-30)

Here are the new R Jobs for 2016-08-30. To post your R job on the next post Just visit this link and post a new R job to the R community. You can either post a job for free (which works great), or pay $50 to have your job featured (and get extra exposure). Current R jobs Job seekers: please follow the links below to learn more and...

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RProtoBuf 0.4.5: now with protobuf v2 and v3!

August 29, 2016
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A few short weeks after the 0.4.4 release of RProtoBuf, we are happy to announce a new version 0.4.5 which appeared on CRAN earlier today. RProtoBuf provides R bindings for the Google Protocol Buffers ("Protobuf") data encoding library used and released by Google, and deployed as a language and operating-system agnostic protocol by numerous...

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RClimate Script to Assess Local Hot Day Trends

August 29, 2016
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RClimate Script to Assess Local Hot Day Trends

There is ample evidence of global climate change, these are just a few examples  (here, here, here). While global indicators are important to focus attention on the problem and solutions, local data is important to help us understand the situation … Continue reading →

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tibble 1.2.0

August 29, 2016
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tibble 1.2.0

We’re proud to announce version 1.2.0 of the tibble package. Tibbles are a modern reimagining of the data frame, keeping what time has shown to be effective, and throwing out what is not. Grab the latest version with: install.packages("tibble") This is mostly a maintenance release, with the following major changes: More options for adding individual

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Want to learn how to make maps in R?

August 29, 2016
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Once upon a time I wrote an open source package that makes it easy to create choropleth maps in R. I called the package choroplethr. Then... The post Want to learn how to make maps in R? appeared first on AriLamstein.com.

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Video series: Introduction to Microsoft R Server

August 29, 2016
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Microsoft R Server extends the base R language and Microsoft R Open with big-data capabilities. Specifically, it adds the RevoScaleR package, which creates an out-of-memory "CDF" data structure (so you can process data larger than available RAM), and algorithms that allow you to perform computations on such data using parallel and distributed algorithms. (A limited version of the RevoScaleR...

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Make Bland Altman Plots with Marginal Histograms using ggExtra

The Problem As you know in Clinical Chemistry, we are not always writing a major paper but sometimes just preparing a short-report to answer a technical question that we've encounted at work. For shorter papers, journals often have more stringent rules about how many figures you can submit and even sometimes forbid multipanelled figures. In … Continue...

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quantmod 0.4-6 on CRAN

August 29, 2016
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CRAN just accepted a bugfix release of quantmod.  The most pertinent changes were to fix getSymbols.oanda (#36) and getOptionChain.yahoo (#92).  It also includes a fix to addTRIX (#72).Oanda changed their URL format from http to https, and getSymbols.oanda did not follow the redirect.  Yahoo Finance changed the HTML for displaying options data, which broke getOptionChain.yahoo.  The...

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Shiny tips & tricks for improving your apps and solving common problems

August 29, 2016
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Shiny tips & tricks for improving your apps and solving common problems

This document contains a collection of various Shiny tricks that I commonly use or that I know many people ask about. Each link contains a complete functional Shiny app that demonstrates how to perform a non trivial task in Shiny. The complet...

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Dates and Times – Simple and Easy with lubridate exercises (part 2)

August 29, 2016
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Dates and Times – Simple and Easy with lubridate exercises (part 2)

This is the second part in the series teaching the “lubridate” package. As a short recap from the previous part, I mentioned that date/date_time formats are easily parced using the ymd set of functions (for example, dmy, ymd_h, etc). I also explained that arithmetic calculations are performed using the days, months, years, etc. functions. In

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RDBL – manipulate data in-database with R code only

August 29, 2016
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RDBL – manipulate data in-database with R code only

In this post I introduce our own package RDBL, the R DataBase Layer. With this package you can manipulate data in-database without writing SQL code. The package interprets the R code and sends out the corresponding SQL statements to the database, fully transparently. To minimize overhead, the data is only fetched when absolutely necessary, allowing Related Post

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DHARMa – an R package for residual diagnostics of GLMMs

August 28, 2016
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DHARMa – an R package for residual diagnostics of GLMMs

I just released a small R package that I have been working on for a while. The motivation for this package came from the observation that I kept on receiving questions about residual checks for GLMMs. The problem that people have is that they have fitted their GLMM, maybe they tested it for overdispersion and…

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rfoaas 1.1.0

August 28, 2016
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rfoaas 1.1.0

FOAAS upstream came out with release 1.1.0 earlier last week. Tyler Hunt was kind enough to provide an almost immediate pull request adding support for the extended capabilties. Following yesterday's upload we now have version 1.1.0 of rfoaas on CRA...

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satRday conference @ Budapest next week

August 27, 2016
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satRday conference @ Budapest next week

There's only one week left until the very first satRdays event all around the world!This is a very exciting project with great interest from the R and more general data science community -- in the past short 2 months (since we opened registration for the conference):More than 160 persons signed up and paid for...

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Dual axes time series plots with various more awkward data

August 27, 2016
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Dual axes time series plots with various more awkward data

In my most recent blog post I introduced the dualplot() R function, which allows you to create time series plots with two different scales on the vertical axes in a way that minimises the potential problems of misinterpretation. See that earlier post ...

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RcppCNPy 0.2.5

August 26, 2016
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A maintenance release of the RcppCNPy package is now on CRAN. RcppCNPy provides R with read and write access to NumPy files thanks to the cnpy library by Carl Rogers. This release just updates a few package internals such as the vignette, the DESCRIP...

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Microsoft R Open 3.3.1 now available for Windows, Mac and Linux

August 26, 2016
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Microsoft R Open 3.3.1 now available for Windows, Mac and Linux

Microsoft R Open 3.3.1, our enhanced disstribution of open source R, is now available for download for Windows, Mac, and Linux. This update upgrades the R langauge engine to version 3.3.1, streamlines the installation process, and bundles some additional packages for parallel programming. R version 3.3.1 fixes a few rarely-encountered bugs, for example to generate Gamma random numbers with...

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Reshape 2 Exercises

August 26, 2016
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Reshape 2 Exercises

The Reshape 2 package is based on differentiating between identification variables, and measurement variables. The functions of the Reshape 2 package then “melt” datasets from wide to long format, and “cast” datasets from long to wide format. Required package: library(reshape2) Answers to the exercises are available here. Exercise 1 Set a variable called “moltenMtcars“, by

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Analysis of the #7FavPackages hashtag

August 26, 2016
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Analysis of the #7FavPackages hashtag

Twitter has seen a recent trend of “first 7” and “favorite 7” hashtags, like #7FirstJobs and #7FavFilms. Last week I added one to the mix, about my 7 favorite R packages: devtoolsdplyrggplot2knitrRcpprmarkdownshiny#7FavPackages #rstats— David Robinson (@drob) August 16, 2016 Hadley Wickham agreed to share his own, but on one condition:

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Five ways to calculate internal consistency

August 26, 2016
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Five ways to calculate internal consistency

Let’s get psychometric and learn a range of ways to compute the internal consistency of a test or questionnaire in R. We’ll be covering: Average inter-item correlation Average item-total correlation Cronbach’s alpha Split-half reliability (adjusted using the Spearman–Brown prophecy formula) Composite reliability If you’re unfamiliar with any of these, here are some resources to get...

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Beyond R: Integration of R into the analysis software KNIME and in Docker environments

August 26, 2016
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Beyond R: Integration of R into the analysis software KNIME and in Docker environments

Speaker of the Kenntnis-Tage 2016: Eugene Harschack | Decadis AG Eugene Harschack works in the Business Intelligence Solution department at Decadis, where he implements BI solutions for customers. Decadis is an independent IT consulting firm which supports customers in planning, implementing and operating IT infrastructures. The department Business Intelligence Solutions deals with classic BI …

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RcppArmadillo 0.7.400.2.0

August 25, 2016
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RcppArmadillo 0.7.400.2.0

Another Armadillo 7.* release -- now at 7.400. We skipped the 7.300.* serie release as it came too soon after our most recent CRAN release. Releasing RcppArmadillo 0.7.400.2.0 now keeps us at the (roughly monthly) cadence which works as a good compr...

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Simple Guide to S3 Methods

August 25, 2016
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Simple Guide to S3 Methods

So I’ve just submitted my first article to the R Journal! The paper, “A Simple Guide to S3 Methods”, is my attempt at a quick and simple guide to using S3 methods in R. Although not my first publication, it is my first solo publication, whi...

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Presidential Election Predictions 2016 (an ASA competition)

August 25, 2016
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Guest post by Jo Hardin ASA’s Prediction Competition In this election year, the American Statistical Association (ASA) has put together a competition for students to predict the exact percentages for the winner of the 2016 presidential election. They are offering cash prizes for the entry that gets closest to the national vote percentage and that best … Continue...

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