How to capitalize on a priori contrasts in linear (mixed) models: A tutorial

August 16, 2018
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We wrote a short tutorial on contast coding, covering the common contrast coding scenarios, among them: treatment, helmert, anova, sum, and sliding (successive differences) contrasts.  The target audience is psychologists and linguists, but really it is for anyone doing planned experiments.   The paper has not been submitted anywhere yet. We are keen to get user feedback before we...

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Basic Generalized Linear Modeling – Part 3: Exercises

August 15, 2018
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Basic Generalized Linear Modeling – Part 3: Exercises

In this exercise, we will continue to solve problems from the last exercise about GLM here. Therefore, the exercise number will start at 9. Please make sure you read...

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“Where to bird” geostats in R

August 15, 2018
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“Where to bird” geostats in R

I just came across a nice little post on acquiring and visualizing geodata in R using the Max Planck Institute of Ornithology as an example. It’s by the rOpenSci...

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Announcing Practical Data Science with R, 2nd Edition

August 15, 2018
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Announcing Practical Data Science with R, 2nd Edition

We are pleased and excited to announce that we are working on a second edition of Practical Data Science with R! Manning Publications has just announced the launching of...

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R/Medicine conference

August 15, 2018
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R/Medicine conference

...

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New Course: Analyzing Survey Data in R

August 15, 2018
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New Course: Analyzing Survey Data in R

Here is the course link. Course Description You've taken a survey (or 1000) before, right? Have you ever wondered what goes into designing a survey and how survey responses are turned...

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Demystifying data science terminology

August 15, 2018
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Demystifying data science terminology

The language used by data scientists can be confusing to anyone encountering it for the first time. Ever changing best practices and constantly evolving technologies and methodologies have given...

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TokyoR #71

August 14, 2018
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TokyoR #71

Last month, I was delighted to be invited to speak, along with Hadley Wickham, at the seventy-first meeting of the TokyoR user group in Tokyo, Japan. This day-long mini-conference...

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Multivariate ordinal categorical data generation

August 14, 2018
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Multivariate ordinal categorical data generation

An economist contacted me about the ability of simstudy to generate correlated ordinal categorical outcomes. He is trying to generate data as an aide to teaching cost-effectiveness analysis, and...

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BooST (Boosting Smooth Trees) a new Machine Learning Model for Partial Effect Estimation in Nonlinear Regressions

August 14, 2018
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BooST (Boosting Smooth Trees) a new Machine Learning Model for Partial Effect Estimation in Nonlinear Regressions

By Gabriel Vasconcelos and Yuri Fonseca   We are happy to introduce our new machine learning method called Boosting Smooth Trees (BooST) (full article here). This model was a...

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Microsoft R Open 3.5.1 now available

August 14, 2018
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Microsoft R Open 3.5.1 has been released, combining the latest R language engine with multi-processor performance and tools for managing R packages reproducibly. You can download Microsoft R Open...

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data.table is Really Good at Sorting

August 13, 2018
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data.table is Really Good at Sorting

The data.table R package is really good at sorting. Below is a comparison of it versus dplyr for a range of problem sizes. The graph is using a log-log...

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2018 Update of ffanalytics R Package

August 13, 2018
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Introduction As part of our effort to provide users ways to replicate our analyses and improve their performance in fantasy football, we are continuously looking at ways we can...

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Where to go observe birds in Radolfzell? An answer with R and open data

Where to go observe birds in Radolfzell? An answer with R and open data

This post is the 1st post of a series showcasing various rOpenSci packages as if Maëlle were a birder trying to make the most of R in general and rOpenSci in...

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Mongolite 2.0: GridFS, connection pooling, and more

This week version 2.0 of the mongolite package has been released to CRAN. Major new features in this release include support for MongoDB 4.0, GridFS, running database commands, and...

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PCA revisited: using principal components for classification of faces

August 13, 2018
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PCA revisited: using principal components for classification of faces

This is a short post following the previous one (PCA revisited). In this post I’m going to apply PCA to a toy problem: the classification of faces. Again I’ll be...

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In-brief: splashr update + High Performance Scraping with splashr, furrr & TeamHG-Memex’s Aquarium

August 13, 2018
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In-brief: splashr update + High Performance Scraping with splashr, furrr & TeamHG-Memex’s Aquarium

The development version of splashr now support authenticated connections to Splash API instances. Just specify user and pass on the initial splashr::splash() call to use your scraping setup a...

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Time series intervention analysis with fuel prices by @ellis2013nz

August 13, 2018
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Time series intervention analysis with fuel prices by @ellis2013nz

A couple of months ago I blogged about consumer spending on vehicle fuel by income. The impetus for that post was the introduction on 1 July 2018 of...

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Evaluating Olive McBride with the Arkham Horror LCG Chaos Bag Simulator in R

August 13, 2018
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Evaluating Olive McBride with the Arkham Horror LCG Chaos Bag Simulator in R

I love Arkham Horror; The Card Game. I love it more than I really should;it's ridiculously fun. It's a cooperative card game where you build a deck representing a...

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IML and H2O: Machine Learning Model Interpretability And Feature Explanation

IML and H2O: Machine Learning Model Interpretability And Feature Explanation

Model interpretability is critical to businesses. If you want to use high performance models (GLM, RF, GBM, Deep Learning, H2O, Keras, xgboost, etc), you need to learn how to...

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A More Informative Approach to Movie Recommendation

August 12, 2018
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A More Informative Approach to Movie Recommendation

A Deluge of Content Over the last two decades, the accessibility of media has increased dramatically. One of the main reasons for this surge in available content is the...

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R/Medicine Conference

August 12, 2018
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R/Medicine Conference

We are less than one month away from the R/Medicine conference! Tickets are still available to connect with the R users...

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PCA revisited

August 12, 2018
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PCA revisited

Principal component analysis (PCA) is a dimensionality reduction technique which might come handy when building a predictive model or in the exploratory phase of your data analysis. It is...

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Statistics Sunday: Getting Started with the Russian Tweet Dataset

August 12, 2018
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Statistics Sunday: Getting Started with the Russian Tweet Dataset

IRA Tweet Data You may have heard that two researchers at Clemson University analyzed almost 3 millions tweets from the Internet Research Agency (IRA) - a "Russian...

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Ceteris Paribus v0.3 is on CRAN

August 11, 2018
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Ceteris Paribus v0.3 is on CRAN

Ceteris Paribus package is a part of DALEX family of model explainers. Version 0.3 just gets to CRAN. It’s equipped with new functions for very elastic visual exploration of...

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Mid Table Mediocrity

August 10, 2018
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Mid Table Mediocrity

Visualising potential winners in the Scottish Championship - Last August, I was given a surprise gift of a season ticket to watch my local football...

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Redmonk Language Rankings, June 2018

August 10, 2018
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Redmonk Language Rankings, June 2018

The latest Redmonk Language Rankings are out. These rankings are published twice a year, and the top three positions in the June 2018 rankings remain unchanged from last time:...

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RQuantLib 0.4.5: Windows is back, and small updates

August 10, 2018
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A brand new release of RQuantLib, now at version 0.4.5, just arrived on CRAN, and will get to Debian shortly. This release re-enables Windows builds thanks to a...

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Installation of R 3.5 on Ubuntu 18.04 LTS and tips for spatial packages

August 10, 2018
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Installation of R 3.5 on Ubuntu 18.04 LTS and tips for spatial packages

Do you plan to upgrade your server installation from Ubuntu 16.04 to Ubuntu 18.04 LTS ? It is also the best time to migrate to R 3.5 ! By...

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