August 2018

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

August 13, 2018 | rOpenSci - open tools for open science

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 particular. Although the series use cases will mostly feature birds, it’ll be the occasion to highlight rOpenSci’...

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Mongolite 2.0: GridFS, connection pooling, and more

August 13, 2018 | rOpenSci - open tools for open science

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 connection pooling. Mongolite is primarily an easy-to-use client to get data in and out of MongoDB. However it supports increasingly many advanced features ... [Read more...]

PCA revisited: using principal components for classification of faces

August 13, 2018 | Mic

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 working on the Olivetti faces dataset. Please visit the previous post PCA revisited to read how to download ...

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

August 13, 2018 | hrbrmstr

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 bit more safely. For those not familiar with splashr and/or Splash: the latter is a lightweight alternative to tools ...

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Time series intervention analysis with fuel prices by @ellis2013nz

August 13, 2018 | free range statistics - R

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 an 11.5 cent per litre “regional fuel tax” in Auckland. One vehement critic of the levy, largely ... [Read more...]

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

August 13, 2018 | ntguardian

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 character in the Cthulhu mythos universe, and with that deck you play scenarios in a narrative campaign where you grapple ...

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IML and H2O: Machine Learning Model Interpretability And Feature Explanation

August 13, 2018 | business-science.io - Articles

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 explain them. With machine learning interpretability growing in importance, s... [Read more...]

Various Versions of R and Python Logos

August 13, 2018 | Vivian Jeenel

Since a couple of months, I am working for STATWORX as a marketing manager (and I love it). My colleagues asked me many times, if it is possible to do a logo of R or Python, in different colors with transparent background, so the logo fits perfectly in their presentations. ...

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A More Informative Approach to Movie Recommendation

August 12, 2018 | Alex Baransky

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 evolution of online streaming platforms. Services like Netflix, Hulu, Amazon Prime, and others enable access for millions of consumers to a ...

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PCA revisited

August 12, 2018 | Mic

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 often the case that when it is most handy you might have forgot it exists but let’s neglect this aspect ...

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Statistics Sunday: Getting Started with the Russian Tweet Dataset

August 12, 2018 |

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 troll factory". In partnership with FiveThirtyEight, they made all of their data available on GitHub. So of course, I had to read the files ...

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Ceteris Paribus v0.3 is on CRAN

August 11, 2018 | smarterpoland

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 black box models. Its grammar generalizes Partial Dependency Plots, Individual Conditional Expectations, Wangkardu Plots and gives a lot of flexibility in ... [Read more...]

A Change in Age at the Olympics

August 10, 2018 | Stefan Gouyet

The Olympics is an interesting competition for soccer fans: it has the characteristics of both a big tournament like the World Cup and a smaller showcase for young players. The quality of play is often top class and the excitement can be very high, but it’s ultimately a chance ...

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Gravity Falls and Tidy Data Principles (Part 1)

August 10, 2018 | Pachá

Updated 2019-07-15 Motivation After reading The Life Changing Magic of Tidying Text and A tidy text analysis of Rick and Morty I wanted to do something similar for Rick and Morty and I did. Now I’m doing something similar for Gravity Falls. In this post I’ll focus ...

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Import Data into R – Part 2

August 10, 2018 | Rsquared Academy Blog

Introduction This is the second post in the series Importing Data into R. In the previous post, we explored reading data from flat/delimited files. In this post, we will: list sheets in an excel file read data from an excel sheet read specific cells from an excel sheet read ...

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Mid Table Mediocrity

August 10, 2018 | HighlandR

Visualising potential winners in the Scottish Championship - Last August, I was given a surprise gift of a season ticket to watch my local football team, Inverness Caledonian Thistle. They’d been relegated from the top league in Scotland t...

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Mid Table Mediocrity

August 10, 2018 | HighlandR

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R Functions for Reproducible Data Frames

August 10, 2018 | George Mount

While there are many great resources to get help in R, sometimes you just need a second opinion. Here is where the many Internet help boards come in handy, most notably Stack Overflow. Start posting on Stack Overflow and you will soon learn the importance of the minimum reproducible example (... [Read more...]

Redmonk Language Rankings, June 2018

August 10, 2018 | David Smith

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: JavaScript at #1, Java at #2, and Python at #3. The Redmonk rankings are based on Github repositories (as a proxy for developer activity) and ... [Read more...]

RQuantLib 0.4.5: Windows is back, and small updates

August 10, 2018 | Thinking inside the box

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 PR by Jeroen who now supplies a QuantLib library build in his rwinlib repositories. (Sadl... [Read more...]

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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

August 2018

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

Mongolite 2.0: GridFS, connection pooling, and more

PCA revisited: using principal components for classification of faces

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

Time series intervention analysis with fuel prices by @ellis2013nz

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

IML and H2O: Machine Learning Model Interpretability And Feature Explanation

Various Versions of R and Python Logos

A More Informative Approach to Movie Recommendation

PCA revisited

Statistics Sunday: Getting Started with the Russian Tweet Dataset

Ceteris Paribus v0.3 is on CRAN

A Change in Age at the Olympics

Gravity Falls and Tidy Data Principles (Part 1)

Import Data into R – Part 2

Mid Table Mediocrity

Mid Table Mediocrity

R Functions for Reproducible Data Frames

Redmonk Language Rankings, June 2018

RQuantLib 0.4.5: Windows is back, and small updates

August 2018

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