February 2016

rbokeh Version 0.4.1 Released

February 29, 2016 | 0 Comments

The rbokeh package version 0.4.1 was recently released. The most major addition in 0.4 is support for javascript callbacks for custom interactivity, which I’ll provide an example of below and will be posting about in more detail soon. Thanks to i... [Read more...]

Version control with Git

February 29, 2016 | 0 Comments

Keeping track of versions You work on a project and would like to keep track of what you did. That is why keep old versions of your files. That way you can go back if you messed up beyond recognition. Usually that looks like this: Or you use dropbox or ...
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BythMusteR: Mobile Phone Evolution

February 29, 2016 | 0 Comments

TL DRs Time ago I changed my humble moto G 1st gen with a more big Mate Ascend 7 and my thumb did things I didn’t know to reach the opposite top corner. In one of this efforts to reach a far icon I remembered the phone evolution image. And ... [Read more...]

R-based data maps in PowerBI

February 29, 2016 | 0 Comments

One of benefit of integrating R with PowerBI is access to rich array of data visulizations not present in the standard PowerBI loadout. R is practically unlimited in the types of graphics it can create (although the amount of programming required can vary from a few lines using an existing ... [Read more...]

Toying with models: The Game of Life with selection

February 29, 2016 | 0 Comments

Conway’s Game of life is probably the most famous cellular automaton, consisting of a grid of cells developing according simple rules. Today, we’re going to add mutation and selection to the game, and see let patterns evolve. The fate of a cell depends on the number cells that ...
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Batch Forecasting in R

February 29, 2016 | 0 Comments

Given a data frame with multiple columns which contain time series data, let’s say that we are interested in executing an automatic forecasting algorithm on a number of columns. Furthermore, we want to train the model on a particular number of observations and assess how well they forecast future ... [Read more...]

covplot supports GRangesList

February 28, 2016 | 0 Comments

To answer the issue, I extend the covplot function to support viewing coverage of a list of GRanges objects or bed files. library(ChIPseeker) files [Read more...]

New CRAN package gunsales

February 28, 2016 | 0 Comments

This is based on joint work with Gregor Aisch and Josh Keller of the New York Times. A new package gunsales is now on the CRAN network for R. It is based the NYTimes/gunsales repository underlying the excellent New York Times visualizations, first published first in December 2015 and updated ...
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Predicting creditworthiness: part-2

February 28, 2016 | 0 Comments

Refining the credit model(s) To continue with the creditworthiness case, I want to explore this case a little bit more by adding more meta algorithms such as boosting, winnowing, cross validation etc. Additionally, I’ll use randomforest as classifier algorithm. I’m still using the same german credit data ... [Read more...]

My Baby Boomer Name Might Have Been “Debbie”

February 28, 2016 | 0 Comments

I have always loved learning and thinking about names, how they are chosen and used, and how people feel about their names and the names around them. We had a traditional baby name book at our house when I was growing up (you know, lists of names with meanings), and ... [Read more...]

Mapping Birds with Choroplethr

February 28, 2016 | 0 Comments

After releasing my course Mapmaking in R with Choroplethr last December I received an interesting email from Dr. Herb Wilson, a biologist at Colby College. Herb studies the Red-breasted Nuthatch, which live throughout the United States and Canada. He asked if it was possible to use choroplethr to map the ...
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Network Visualization with Plotly and Shiny

February 28, 2016 | 0 Comments

In addition to their more common uses, networks  can be used as powerful multivariate data visualizations and exploration tools. Networks not only provide mathematical representations of data but are also one of the few data visualization methods capable of easily displaying multivariate variable relationships. The process of network mapping involves ...
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Introduction to R: For Beginners Who Want to be Intermediate

February 28, 2016 | 0 Comments

This semester, I am managing an undergraduate on our research team. She has a basic engineering statistics background with a little experience doing analysis in Excel and understands some basic programming concepts. For her project with our group, she will have to learn R. I tried to compile a list ...
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A Tale of Two Charting Paradigms: Vega-Lite vs R+ggplot2

February 28, 2016 | 0 Comments

This post comes hot off the heels of the nigh-feature-complete release of vegalite (virtually all the components of Vega-Lite are now implemented and just need real-world user testing). I’ve had a few and seen a few questions about “why Vega-Lite”? I think my previous post gave some good answers ... [Read more...]

Mortality by Weekday and Age

February 27, 2016 | 0 Comments

A few days ago, I did mention on Twitter a nice graph, with Mortality by Weekday and Age https://t.co/LyzQ7nJABZ very interesting difference, young vs. old pic.twitter.com/EfrX0C1GBS — Arthur Charpentier (@freakonometrics) 27 février 2016 My colleague Jean-Philippe was extremely sceptical, so I tried to ...
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Revisiting Data-driven Marketing

February 27, 2016 | 0 Comments

One of the key trends in the advertising industry is (digital) data-driven marketing. The whole thing starts with massive, passive data collection. No matter which website we visit or which app we use: We leave a digital footprint. These footprints are compiled for individual users and form so-called user profiles. ... [Read more...]

Upload plots as PNG file to your wordpress

February 27, 2016 | 0 Comments

Synopsis Note! This post is a addition to Create blog posts from RStudio to WordPress About a week ago I tried to add my blog to R-Bloggers. I thought everything was correct to add it. But this week I got a mail from Tal Galili (site administrator of R-Bloggers) with […] [Read more...]

The first official Johannesburg R Users’ Meetup!

February 27, 2016 | 0 Comments

We’ve been working hard on obtaining sponsors for the community and setting up a support structure for knowledge sharing and connecting our members. Our first Johannesburg R User Meetup (on the 8th March) is being sponsored by Microsoft and will be taking place at their Bryanston Campus. Our confirmed ... [Read more...]
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