Some Random Weekend Reading

March 23, 2017
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Few of us have enough time to read, and most of us already have depressingly deep stacks of material that we would like to get through. However, sometimes a random encounter with something interesting is all that it takes to regenerate enthusiasm. Just in case you are not going to get to a book store with a good technical...

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Some Random Weekend Reading

March 23, 2017
By

Few of us have enough time to read, and most of us already have depressingly deep stacks of material that we would like to get through. However, sometimes a random encounter with something interesting is all that it takes to regenerate enthusiasm. Just in case you are not going to get to a book store with a good technical...

Read more »

Mapping Racial Segregation in Chicago

Mapping Racial Segregation in Chicago

This spring break I was reading a couple of papers about segregation in the US (Cutler and Galeser 1997 and Cutler et al 1999). A paragraph on Cutler et al (1999) caught my attention: “Chicago was the most segregated city in 1890, the fourth most segregated city in 1940, the most segregated MSA in 1970, and the fourth most...

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QR Decomposition with the Gram-Schmidt Algorithm

March 23, 2017
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QR decomposition is another technique for decomposing a matrix into a form that is easier to work with in further applications. The QR decomposition technique decomposes a square or rectangular matrix, which we will denote as , into two components, , and . Where is an orthogonal matrix, and is... The post QR Decomposition with the Gram-Schmidt Algorithm...

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Announcing R Tools 1.0 for Visual Studio 2015

March 23, 2017
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Announcing R Tools 1.0 for Visual Studio 2015

by Shahrokh Mortazavi, Partner PM, Visual Studio Cloud Platform Tools at Microsoft I’m delighted to announce the general availability of R Tools 1.0 for Visual Studio 2015 (RTVS). This release will be shortly followed by R Tools 1.0 for Visual Studio 2017 in early May. RTVS is a free and open source plug-in that turns Visual Studio into a...

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Survminer Cheatsheet to Create Easily Survival Plots

March 23, 2017
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Survminer Cheatsheet to Create Easily Survival Plots

We recently released the survminer verion 0.3, which includes many new features to help in visualizing and sumarizing survival analysis results. In this article, we present a cheatsheet for...

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Make the [R] Kenntnis-Tage 2017 your stage

March 23, 2017
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Make the [R] Kenntnis-Tage 2017 your stage

At the Kenntnis-Tage 2017 on November 8 and 9, 2017 you will get the chance to benefit not only from the exchange about the programming language R in a business context and practical tutorials but also from the audience: use the Kenntnis-Tage 2017 as your platform and hand in your topic for the …

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The Tidyverse Curse

March 23, 2017
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I’ve just finished a major overhaul to my widely read article, Why R is Hard to Learn. It describes the main complaints I’ve heard from the participants to my workshops, and how those complaints can often be mitigated. Here’s the only … Continue reading →

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10 Million Dots: Mapping European Population

March 23, 2017
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10 Million Dots: Mapping European Population

Creating a giant dot density map using R.

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Mean trophic levels of a genera from FishBase

March 22, 2017
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Mean trophic levels of a genera from FishBase

Mean trophic levels of a genera from FishBase How would you selectively aggregate observations using R? For instance, say you have a table of trophic level estimates by fish species, but many species are missing values. For those species missing a val...

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New mlr Logo

March 22, 2017
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We at mlr are currently deciding on a new logo, and in the spirit of open-source, we would like to involve the community in the voting process! You can vote for your favorite logo on GitHub by reacting to the logo with a +1. Thanks to Hannah Atkin fo...

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Euler Problem 17: Number Letter Counts

March 22, 2017
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Euler Problem 17: Number Letter Counts

A solution in the R language to Euler Problem 17: If all the numbers from 1 to 1000 inclusive were written out in words, how many letters would be used? Continue reading → The post Euler Problem 17: Number Letter Counts appeared first on The Devil is in the Data.

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Data Visualization – Part 2

March 22, 2017
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Data Visualization – Part 2

A Quick Overview of the ggplot2 Package in R While it will be important to focus on theory, I want to explain the ggplot2 package because I will be using it throughout the rest of this series. Knowing how it works will keep the focus on the results rather than the code. It’s an incredibly

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Datashader is a big deal

March 22, 2017
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Datashader is a big deal

I recently got back from Strata West 2017 (where I ran a very well received workshop on R and Spark). One thing that really stood out for me at the exhibition hall was Bokeh plus datashader from Continuum Analytics. I had the privilege of having Peter Wang himself demonstrate datashader for me and answer a … Continue...

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Running your R code on Azure with mrsdeploy

March 22, 2017
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Running your R code on Azure with mrsdeploy

by John-Mark Agosta, data scientist manager at Microsoft Let’s say you’ve built a model in R that is larger than you can conveniently run locally, and you want to take advantage of Azure’s resources simply to run it on a larger machine. This blog explains how to provision and run an Azure virtual machine (VM) for this, using the...

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February 2017 New Package Picks

March 22, 2017
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February 2017 New Package Picks

by Joseph Rickert One hundred and forty-five new packages were added to CRAN in February. Here are 47 interesting packages organized into five categories; Biostatistics, Data, Data Science, Statistics and Utilities. Biostatistics BaTFLED3D v0.1.7: Implements a machine learning algorithm to make predictions and determine interactions in data that varies along three independent modes. It was

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The Hitchhiker’s Guide to Ggplot2 in R

March 22, 2017
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The Hitchhiker’s Guide to Ggplot2 in R

Published: 2016-11-30 Updated: 2017-03-23 "Any bleeder knows that books are never finished, only abandoned." Why Information Grows About the book You can find the book here. This is a book that may look complete but changes in R package are al...

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The Hitchhiker’s Guide to Ggplot2 in R

March 22, 2017
By
The Hitchhiker’s Guide to Ggplot2 in R

Published: 2016-11-30 Updated: 2017-03-23 "Any bleeder knows that books are never finished, only abandoned." Why Information Grows About the book You can find the book here. This is a book that may look complete but changes in R package are al...

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Suggests != Depends

March 22, 2017
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A number of packages on CRAN use Suggests: casually. They list other packages as "not required" in Suggests: -- as opposed to absolutely required via Imports: or the older Depends: -- yet do not test for their use in either examples or, more commonly, unit tests. So e.g. the unit tests are bound to fail because, well, Suggests != Depends. This has...

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San Francisco EARL: First round of speakers announced

March 22, 2017
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San Francisco EARL: First round of speakers announced

We’re excited to announced the first round of gReat speakers for San Francisco EARL. Alongside our keynote speakers, Hilary Parker and Ricardo Bion, R Users from a range of industries will share their R stories. Take a look at our … Continue reading →

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Simulating Unown encounter rates in Pokémon Go

March 21, 2017
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Simulating Unown encounter rates in Pokémon Go

Pokémon Go is an augmented reality game where people with smartphones walk around and catch Pokémon. As in the classic games, players are Pokémon “trainers” who have to travel around and collect creatures. Some types are rarer than others, som...

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anytime 0.2.2

March 21, 2017
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A bugfix release of the anytime package arrived at CRAN earlier today. This is tenth release since the inaugural version late last summer, and the second (bugfix / feature) release this year. anytime is a very focused package aiming to do just one th...

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February 2017 New Package Picks

March 21, 2017
By
February 2017 New Package Picks

One hundred and forty-five new packages were added to CRAN in February. Here are 47 interesting packages organized into five categories; Biostatistics, Data, Data Science, Statistics and Utilities. Biostatistics BaTFLED3D v0.1.7: Implements a machine learning algorithm to make predictions and determine interactions in data that varies along three independent modes. It was developed to predict the growth of...

Read more »

February 2017 New Package Picks

March 21, 2017
By
February 2017 New Package Picks

One hundred and forty-five new packages were added to CRAN in February. Here are 47 interesting packages organized into five categories; Biostatistics, Data, Data Science, Statistics and Utilities. Biostatistics BaTFLED3D v0.1.7: Implements a machine...

Read more »

Parallel benchmarking with OpenML and mlr

March 21, 2017
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Parallel benchmarking with OpenML and mlr

With this post I want to show you how to benchmark several learners (or learners with different parameter settings) using several data sets in a structured and parallelized fashion. For this we want to use batchtools. The data that we will use here is stored on the open machine learning platform openml.org and we can download it together...

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Use mlrMBO to optimize via command line

March 21, 2017
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Many people who want to apply Bayesian optimization want to use it to optimize an algorithm that is not implemented in R but runs on the command line as a shell script or an executable. We recently published mlrMBO on CRAN. As a normal package it normally operates inside of R, but with this post I want to demonstrate how...

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Data Analytics for Societal Good

March 21, 2017
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Data Analytics for Societal Good

At my workplace, employees celebrate a month of Data Analysis for Societal good, every year. During this time, we try to help NPOs (Non-Profit Organisations) in gaining insights from their data, for free. Whilst we are engaged in this practice at workp...

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Financial time series forecasting – an easy approach

March 21, 2017
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Financial time series forecasting – an easy approach

Financial time series analysis and their forecasting have an history of remarkable contributions. It is then quite hard for the beginner to get oriented and capitalize from reading such scientific literature as it requires a solid understanding of basic statistics, a detailed study of the ground basis of time series analysis tools and the knowledge Related Post

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The Next Era of Research Communication

March 21, 2017
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The Next Era of Research Communication

From the days of actual research papers (before the digital age), to now where research papers are posted online first, not much has really changed in the way we communicate. We still use static images, formulas and a bunch of text to show what we have...

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