February 2019

Binning Data in a Database

February 28, 2019 | John Mount

Roz King just wrote an interesting article on binning data (a common data analytics step) in a database. He compares a case-based approach (where the bin divisions are stuffed into code) with a join based approach. He shares code and timings. Best of all: rquery gets some attention and turns ...
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Creating a Favicon with R

February 28, 2019 | R on jmarriott.com

I use the Hugo Coder theme for this website, but I don’t like the default favicon, so I decided to make a new one using ggplot2. For those of you who don’t know, a favicon is the little icon that shows up on your browser tab next to ...
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Some R Packages for ROC Curves

February 28, 2019 | R Views

In a recent post, I presented some of the theory underlying ROC curves, and outlined the history leading up to their present popularity for characterizing the performance of machine learning models. In this post, I describe how to search CRAN for packages to plot ROC curves, and highlight six useful ...
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htmlunitjars Updated to 2.34.0

February 28, 2019 | hrbrmstr

The in-dev htmlunit package for javascript-“enabled” web-scraping without the need for Selenium, Splash or headless Chrome relies on the HtmlUnit library and said library just released version 2.34.0 with a wide array of changes that should make it possible to scrape more gnarly javascript-“enabled” sites. The Chrome emulation is ... [Read more...]

EARL London early bird tickets now on sale

February 28, 2019 | Mango Solutions

Early bird tickets for the Enterprise Applications of the R Language Conference are now on sale! The EARL Conference is in its sixth year, its a cross-sector conference that focuses on the commercial use of the R programming language. Take a look at our highlights from last year: We are ... [Read more...]

Tips for drawing a normal distribution

February 27, 2019 | dan

KNOW THY INFLECTION POINT Click to Enlarge We have drawn a lot of sorry-looking normal distributions in our life. It’s a shape that’s hard to get down without a lot of practice. Here’s a few tips that can make it easier. Start by marking out standard deviations ... [Read more...]

Individual patch connectivity

February 27, 2019 | Frederico Mestre

Answering questions from users is actually a good way to find potentially interesting things to post… With the obvious advantage that other people might find it useful too! So… let’s start… This MetaLandSim user wanted a way to derive the contribution of each individual patch to overall landscape connectivity. ...
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Investigating words distribution with R – Zipf’s law

February 27, 2019 | Michal Maj

Hello again! Typically I would start by describing a complicated problem that can be solved using machine or deep learning methods, but today I want to do something different, I want to show you some interesting probabilistic phenomena! Have you heard of Zipf’s law? I hadn’t until recently. ...
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Tutorial: Poisson Regression in R

February 27, 2019 | Hafsa Jabeen

Poisson Regression can be a really useful tool if you know how and when to use it. In this tutorial we’re going to take a long look at Poisson Regression, what it is, and how R programmers can use it in the real world. Specifically, we’re going to ...
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