The Sierpinski Triangle: Visualising infinity in R

May 24, 2017
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The Sierpinski Triangle: Visualising infinity in R

Using the R programming language to draw the Sierpinski triangle fractal using the chaos game. Drawing a fractal using random numbers. Continue reading → The post The Sierpinski Triangle: Visualising infinity in R appeared first on The Devil is in the Data.

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Subplots in maps with ggplot2

May 24, 2017
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Subplots in maps with ggplot2

Following the surprising success of my latest post, I decided to show yet another use case of the handy ggplot2::annotation_custom(). Here I will show how to add small graphical...

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A recipe for dynamic programming in R: Solving a “quadruel” case from PuzzlOR

May 24, 2017
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As also described in Cormen, et al (2009) p. 65, in algorithm design, divide-and-conquer paradigm incorporates a recursive approach in which the main problem is: Divided into smaller sub-problems...

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How brute is your force?: Three ways to get radicals in batch using R

May 24, 2017
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How brute is your force?: Three ways to get radicals in batch using R

Brute force approach to solving a problem is usually the way of running through all possible combinations and repeating a certain calculation. Until a more elegant solution is devised...

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Data wrangling : I/O (Part-1)

May 24, 2017
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Data wrangling : I/O (Part-1)

Data wrangling is a task of great importance in data analysis. Data wrangling, is the process of importing, cleaning and transforming raw data into actionable information for analysis. It...

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Microsoft R Open 3.4.0 now available

May 24, 2017
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Microsoft R Open (MRO), Microsoft's enhanced distribution of open source R, has been upgraded to version 3.4.0 and is now available for download for Windows, Mac, and Linux. This...

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Counterintuitive probability problem of the day

May 24, 2017
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Counterintuitive probability problem of the day

TWO SHOT RUSSIAN ROULETTE WITH 2 BULLETS OR AN EQUAL CHANCE OF 1 or 3 BULLETS With p as the probability of dying on one shot, this figure shows...

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Win an ticket to San Francisco EARL

May 24, 2017
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Win an ticket to San Francisco EARL

This is your chance to win one of two 2-day passes to the first San Francisco EARL Conference on June 6 and 7. To win: All you need to...

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ggeffects: Create Tidy Data Frames of Marginal Effects for ‚ggplot‘ from Model Outputs #rstats

May 24, 2017
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ggeffects: Create Tidy Data Frames of Marginal Effects for ‚ggplot‘ from Model Outputs #rstats

Aim of the ggeffects-package The aim of the ggeffects-package is similar to the broom-package: transforming “untidy” input into a tidy data frame, especially for further use with ggplot. However,…

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6 new Jobs for R users – from all over the world (2017-05-24)

May 24, 2017
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6 new Jobs for R users – from all over the world (2017-05-24)

To post your R job on the next post Just visit this link and post a new R job to the R community. You can post a job for free (and there are also “featured...

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Growth of DataFest over the years

May 23, 2017
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Growth of DataFest over the years

In a previous post, I introduced DataFest and how one can streamline the organization of this event using Google Forms and tools from the tidyverse. In this post,...

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Create smooth animations in R with the tweenr package

May 23, 2017
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Create smooth animations in R with the tweenr package

There are several tools available in R for creating animations (movies) from statistical graphics. The animation package by Yihui Xie will create an animated GIF or video file, using...

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Rcpp 0.12.11: Loads of goodies

The elevent update in the 0.12.* series of Rcpp landed on CRAN yesterday following the initial upload on the weekend, and the Debian package and Windows...

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RStudio Connect 1.5.0 – Introducing Tags!

May 23, 2017
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RStudio Connect 1.5.0 – Introducing Tags!

We’re excited to announce a powerful new ability to organize content in RStudio Connect: version 1.5.0. Tags allow publishers to arrange what they’ve published and enable users to find...

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Only Hours Left to Get 50% off DataCamp

May 23, 2017
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Only Hours Left to Get 50% off DataCamp

This week, DataCamp is celebrating 1 million learners on its platform and is offering 50% off for unlimited access to the full curriculum. Join the learners who have completed...

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Ridge Regression and the Lasso

May 23, 2017
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Ridge Regression and the Lasso

In my last post Which linear model is best? I wrote about using stepwise selection as a method for selecting linear models, which turns out to have some issues...

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R⁶ — Idiomatic (for the People)

May 23, 2017
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NOTE: I’ll do my best to ensure the next post will have nothing to do with Twitter, and this post might not completely meet my R⁶ criteria. A single,...

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How to analyze max-diff data in R

May 23, 2017
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How to analyze max-diff data in R

This post discusses a number of options that are available in R for analyzing data from max-diff experiments, using the package flipMaxDiff. For a...

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simglm submission to CRAN this week

May 22, 2017
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This is a quick note looking for any further feedback on the simglm package prior to CRAN submission later this week. The goal is to submit Thursday or Friday...

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Preview of EARL San Francisco

May 22, 2017
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The first ever EARL (Enterprise Applications of the R Language) conference in San Francisco will take place on June 5-7 (and it's not too late to register). The EARL...

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The Marcos Lopez de Prado Hierarchical Risk Parity Algorithm

May 22, 2017
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The Marcos Lopez de Prado Hierarchical Risk Parity Algorithm

This post will be about replicating the Marcos Lopez de Prado algorithm from his paper building diversified portfolios that outperform … Continue reading →

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Instrumental Variables in R exercises (Part-2)

May 22, 2017
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Instrumental Variables in R exercises (Part-2)

This is the second part of the series on Instrumental Variables. For other parts of the series follow the tag instrumental variables. In this exercise set we will build...

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Slides, videos, and tweets from the 2017 New York R Conference

May 22, 2017
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Slides, videos, and tweets from the 2017 New York R Conference

In April I attended the 2017 New York R conference, hosted by Lander Analytics and Work-Bench. It was both the third time the conference was held...

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The End of the Honeymoon: Falling Out of Love with quantstrat

May 22, 2017
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The End of the Honeymoon: Falling Out of Love with quantstrat

Introduction I spent good chunks of Friday, Saturday, and Sunday attempting to write another blog post on using R and the quantstrat package for backtesting, and all I have...

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R vs Python: Different similarities and similar differences

May 22, 2017
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R vs Python: Different similarities and similar differences

A debate about which language is better suited for Datascience, R or Python, can set off diehard fans of these languages into a tizzy. This post tries to look...

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Bagging, the perfect solution for model instability

May 22, 2017
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Bagging, the perfect solution for model instability

By Gabriel Vasconcelos Motivation The name bagging comes from boostrap aggregating. It is a machine learning technique proposed by Breiman (1996) to increase stability in potentially unstable estimators. For...

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Connecting R to an Oracle Database

May 22, 2017
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Connecting R to an Oracle Database

R is a very popular language for doing analytics, and particularly statistics, on your data. There are a number of R functions for reading in data, but most of...

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Sunflowers for COLOURlovers

May 22, 2017
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Sunflowers for COLOURlovers

Andar, lo que es andar, anduve encima siempre de las nubes (Del tiempo perdido, Robe) If you give importance to colours, maybe you know already COLOURlovers. As can be...

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Finally, Four Backticks on Github

Finally, Four Backticks on Github

It is always the little things… Over the years, I have been totally happy with almost everything about Github, but I have also been waiting for one little thing: I...

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