July 2019

Collecting and Analyzing Twitter Data Using R

July 14, 2019 | R on Methods Bites

How do you access Twitter’s API, collect a stream of tweets, and analyze the retrieved data? Which potentials, challenges, and limitations for social scientific research come along with using Twitter data? This Methods Bites Tutorial by Denis Cohen, based on a workshop by Simon Kühne (Bielefeld University) in ...
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Collecting and Analyzing Twitter Data Using R

July 14, 2019 | R on Methods Bites

How do you access Twitter’s API, collect a stream of tweets, and analyze the retrieved data? Which potentials, challenges, and limitations for social scientific research come along with using Twitter data? This Methods Bites Tutorial by Denis Cohen, based on a workshop by Simon Kühne (Bielefeld University) in ...
[Read more...]

Yet Another R Package for General Regression Neural Network

July 14, 2019 | statcompute

Compared with other types of neural networks, General Regression Neural Network (Specht, 1991) is advantageous in several aspects. Being an universal approximation function, GRNN has only one tuning parameter to control the overall generalization The network structure of GRNN is surprisingly simple, with only one hidden layer and the number of ... [Read more...]

Forecast Combination in R – slides

July 14, 2019 | Eran Raviv

The useR! 2019 held in Toulouse ended couple of days ago. I spoke of the recent R journal publication about forecast combinations (joint work with Christoph Weiss and Gernot Roetzer). Slides for the talk can be found here. Related posts: R Journal publication The R Journal is the open access, refereed ... [Read more...]

Some Details on Running xgboost

July 14, 2019 | John Mount

While reading Dr. Nina Zumel’s excellent note on bias in common ensemble methods, I ran the examples to see the effects she described (and I think it is very important that she is establishing the issue, prior to discussing mitigation). In doing that I ran into one more avoidable ... [Read more...]

Writing Functions in R: Example One

July 13, 2019 | atmathew

A. Background In previous posts, I covered a number of useful functions and packages for writing reusable code. I wanted to extend on that information by providing a working example of how to put together a function. In particular, I will walk through the process of generating a function that ... [Read more...]

Visual Inference with R

July 13, 2019 | R on Methods Bites

How can we use data visualization for hypothesis testing? This question lies at the heart of this Methods Bites Tutorial by Cosima Meyer, which is based on Richard Traunmüller’s workshop in the MZES Social Science Data Lab in Fall 2017. We already covered the basic idea of visual inference ... [Read more...]

Visual Inference with R

July 13, 2019 | R on Methods Bites

How can we use data visualization for hypothesis testing? This question lies at the heart of this Methods Bites Tutorial by Cosima Meyer, which is based on Richard Traunmüller’s workshop in the MZES Social Science Data Lab in Fall 2017. We already covered the basic idea of visual inference ... [Read more...]

Back from useR! 2019

July 13, 2019 | Colin Fay

I’m back from useR! 2019!, Toulouse, where I gave one talk and a workshop. Here are the links to the materials. 2019-07-08 Contributing to the R ecosystem useR! newbie session A short talk about things you can do as a beginner to contibute to... [Read more...]

Simulating Data in R: Examples in Writing Modular Code

July 13, 2019 | Mark White

Simulating data is an invaluable tool. I use simulations to conduct power analyses, probe how robust methods are to violating assumptions, and examine how different methods handle different types of data. If I’m learning something new or writing a model from scratch, I’ll simulate data so that I ...
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GC5GRBF RR175 – Polymath

July 13, 2019 | densurekalkun

There is a series of puzzle caches in the east of England with a great number of interesting abstract puzzles, some of which are R-able. Amongst this estimable collection is one which is itself a miniature collection of puzzles. I saw it yesterday and starting working on the fifteen small ... [Read more...]

Six great things about UseR! 2019

July 12, 2019 | R | Robin Lovelace

UseR! is the highest profile and, I believe, most popular annual meeting for R enthusiasts, known affectionately as ‘UseRs’ for the purposes of the event. For those who have been living under a stone for the past decade ;) R is an open source statistical programming language that has seen explosive ...
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French R conference sponsors

July 12, 2019 | Françoisn - [email protected]

As a complement to the previous note, I have collected every single entity that sponsored a national R conference in France over the last decade. The data include 9 conferences, plus a forthcoming one. For each conference, the number of sponsors varies between 8 and 46, and the number of organising sponsors varies ... [Read more...]

Quick Hit: {waffle} 1.0 Font Awesome 5 Pictograms and More

July 12, 2019 | hrbrmstr

The {waffle} package got some ???? this week and now has a substantially improved geom_waffle() along with a brand new sibling function geom_pictogram() which has all the powerful new features of geom_waffle() but lets you use Font Awesome 5 brand and solid glyphs to make isotype pictograms. A major ...
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