January 2017

RProtoBuf 0.4.8: Windows support for proto3

January 17, 2017 | Thinking inside the box

Issue ticket #20 demonstrated that we had not yet set up Windows for version 3 of Google Protocol Buffers ("Protobuf") -- while the other platforms support it. So I made the change, and there is release 0.4.8. RProtoBuf provides R bindings for the Google Protocol Buffers ("Protobuf") data encoding and serialization library used ... [Read more...]

Basic assumptions to be taken care of when building a predictive model

January 17, 2017 | Ashish Dutt

Before starting to build on a predictive model in R, the following assumptions should be taken care off; Assumption 1: The parameters of the linear regression model must be numeric and linear in nature. If the parameters are non-numeric like categori...

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MinPy: The NumPy Interface upon MXNet’s Backend

January 17, 2017 | DMLC

Machine learning is now enjoying its golden age. In the past few years, its effectiveness has been proved by solving many traditionally hard problems in computer vision and natural language processing. At the same time, different machine learning frameworks came out to justify different needs. These frameworks, fall generally into ...

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Introducing padr

January 17, 2017 | That’s so Random

I am happy to introduce the padr package, which is now available on CRAN. If you frequently work with data containing a timestamp, especially automatically created data, you might find this package helpful. It solves two problems that you can be confronted with when preparing datetime data for analysis. First, ...

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ggedit 0.0.2: a GUI for advanced editing of ggplot2 objects

January 17, 2017 | Tal Galili

Guest post by Jonathan Sidi, Metrum Research Group Last week the updated version of ggedit was presented in RStudio::conf2017. First, a BIG thank you to the whole RStudio team for a great conference and being so awesome to answer the insane amount of questions I had (sorry!). For a ...

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Regression model with auto correlated errors – Part 3, some astrology

January 17, 2017 | Margot Tollefson

The results of the study are interesting from an astrological point of view. Astrological signs are divided into groups by order. The first grouping is by alternating order, with the first sign (Aries) positive and the next sign negative, the third positive, and so on through the circle. The second ... [Read more...]

R Jobs for R users – 12 jobs from around the world (2017-01-17)

January 17, 2017 | Tal Galili

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Git Gud with Git and R

January 17, 2017 | David Smith

If you're doing any kind of in-depth programming in the R language (say, creating a report in Rmarkdown, or developing a package) you might want to consider using a version-control system. And if you collaborate with another person (or a team) on the work, it makes things infinitely easier when ... [Read more...]

Multivariate Apply Exercises

January 17, 2017 | John Akwei

mapply() works with multivariate arrays, and applys a function to a set of vector or list arguments. mapply() also simplifies the output. Structure of the mapply() function: mapply(FUN, ..., MoreArgs = NULL, SIMPLIFY = TRUE, USE.NAMES = TRUE) Answers to the exercises are available here. Exercise 1 Beginning level Required dataframe: PersonnelData [Read more...]

An Analysis of Global Shark Attacks between 1543-2016

January 17, 2017 | S. Richter-Walsh

Travelling to a warm country and plan on hitting the beach? “Beware of the sharks!!” While the expression has almost become a cliché at this stage, shark attacks do occur and the fact that the global ocean is heating up potentially facilitates the occurrence of attacks (I would refer to ...

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Two meanings of priors, part II: Quantifying uncertainty about model parameters

January 17, 2017 | Angelika Stefan

by Angelika Stefan & Felix Schönbrodt This is the second part of “Two meanings of priors”. The first part explained a first meaning – “priors as subjective probabilities of models”. While the first meaning of priors refers to a global appraisal of existing hypotheses, the second meaning of priors refers to ... [Read more...]

New version of WEC: focus on interactions

January 17, 2017 | Rense Nieuwenhuis

We have uploaded a new version of WEC, an R package to apply ‘weighted effect coding’ to your dummy variables. With weighted effect coding, your dummy variables represent the deviation of their respective category from ... [Read more...]

Research lessons learnt the hard way #1: maintaining organised data files

January 17, 2017 | James Bartlett

This is the first post in a (hopefully not long) series of research lessons learned from making mistakes. Most of the lessons have been in various aspects of programming as none of my supervisors or fellow postgraduates have any interest in R or Python, so I have had to learn ...

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Searching for predatory journals and publishers with R

January 17, 2017 | R and Finance

Using package predatory - The recent rise of publications in predatory journals is a big issue in the academic community and it hurts the development of science. This is especially true for developing countries such as Brazil, whe... [Read more...]

EARL 2017: Abstract submissions open for San Francisco and London + San Francisco dates and venue announced

January 17, 2017 | Karis Bouher

Share your knowledge – speak at EARL 2017 Mango Solutions are delighted to announce the call for abstracts for EARL London and EARL San Francisco 2017. EARL (Effective Applications of the R Language) focuses on the commercial usage and business … Continue reading → [Read more...]

Predicting the Zakopane 2017 men’s ski jumping competition

January 16, 2017 | S. Richter-Walsh

When I was a young boy with a wild imagination, I used to try my hand at numerous sports ranging from tennis to gaelic footbal to soccer, each with varying degrees of success. Living in the countryside throughout my childhood, a big garden allowed me to construct vivid simulations of ...

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R or Python for Data Science?

January 16, 2017 | g4greetz

Addressing the question 'R or Python for data science' depends mainly on the problems which is to be solved, the tools required to solve the problem and your personal preference. Read more.. [Read more...]

R For Beginners: Basic Graphics Code to Produce Informative Graphs, Part Two, Working With Big Data

January 16, 2017 | dmwiig

R for beginners: Some basic graphics code to produce informative graphs, part two, working with big data A tutorial by D. M. Wiig In part one of this tutorial I discussed the use of R code to produce 3d scatterplots. This is a useful way to produce visual results of ...

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The Devil’s in the [Davos] Details — A quick look at this year’s WEF Global Risks Report

January 16, 2017 | hrbrmstr

It’s Davos time again. Each year the World Economic Forum (WEF) gathers the global elite together to discuss how they’re going to shape our collective future. WEF also releases their annual Global Risks Report at the same time. I read it every year and have, in the past, ...

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The fivethirtyeight R package

January 16, 2017 | David Smith

Andrew Flowers, quantitiative editor of FiveThirtyEight.com, announced at last weeks' RStudio conference the availability of a new R package containing data and analyses from some of their data journalism features: the fivethirtyeight package. (Andrew's talk isn't yet online, but you can see him discuss several of these stories in ... [Read more...]

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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

January 2017

RProtoBuf 0.4.8: Windows support for proto3

Basic assumptions to be taken care of when building a predictive model

MinPy: The NumPy Interface upon MXNet’s Backend

Introducing padr

ggedit 0.0.2: a GUI for advanced editing of ggplot2 objects

Regression model with auto correlated errors – Part 3, some astrology

R Jobs for R users – 12 jobs from around the world (2017-01-17)

Git Gud with Git and R

Multivariate Apply Exercises

An Analysis of Global Shark Attacks between 1543-2016

Two meanings of priors, part II: Quantifying uncertainty about model parameters

New version of WEC: focus on interactions

Research lessons learnt the hard way #1: maintaining organised data files

Searching for predatory journals and publishers with R

EARL 2017: Abstract submissions open for San Francisco and London + San Francisco dates and venue announced

Predicting the Zakopane 2017 men’s ski jumping competition

R or Python for Data Science?

R For Beginners: Basic Graphics Code to Produce Informative Graphs, Part Two, Working With Big Data

The Devil’s in the [Davos] Details — A quick look at this year’s WEF Global Risks Report

The fivethirtyeight R package

January 2017

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