Mapping Biodiversity data on smaller than one degree scale

February 22, 2017
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Mapping Biodiversity data on smaller than one degree scale

Guest Post by Enjie (Jane) LI I have been using bdvis package (version 0.2.9) to visualize the iNaturalist records of RAScals project (http://www.inaturalist.org/projects/rascals). Initially, the mapgrid function in the bdvis version 0.2.9 was written to map the number of records, number of species and completeness in a 1-degree cell grid (~111km x 111km resolution). I applied this

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Euler Problem 13: Large Sum of 1000 Digits

February 22, 2017
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Euler Problem 13: Large Sum of 1000 Digits

Euler Problem 13 asks to add one hundred numbers with fifty digits. This seems like a simple problem where it not that most computers are not designed to deal with...

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The difference between R and Excel

February 22, 2017
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The difference between R and Excel

If you're an Excel user (or any other spreadsheet, really), adapting to learn R can be hard. As this blog post by Gordon Shotwell explains, one of the reasons...

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#AskNASA: What’s the Optimal Time for Aliens to Invade Earth?

February 22, 2017
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#AskNASA: What’s the Optimal Time for Aliens to Invade Earth?

This post was originally published on SmartCat, 22 Feb 2017.My inaugural blog as a Data Science Consultant for SmartCat. The code that accompanies the analyses presented here...

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Finding Radiohead’s most depressing song, with R

February 22, 2017
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Finding Radiohead’s most depressing song, with R

Radiohead is known for having some fairly maudlin songs, but of all of their tracks, which is the most depressing? Data scientist and R enthusiast Charlie Thompson ranked all...

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How to Teach R: Common mistakes

February 22, 2017
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by Garrett Grolemund Would you like to teach people to use R? If so, I would like to jump-start your efforts. I’m one half of RStudio’s education team, and...

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Quick tip: knitr Python Windows setup checklist

February 22, 2017
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Quick tip: knitr Python Windows setup checklist

One of the nifty things about using R is that you can use it for many different purposes and even other languages! If you want to use Python in...

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leaflet 1.1.0

February 22, 2017
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leaflet 1.1.0

Leaflet 1.1.0 is now available on CRAN! The Leaflet package is a tidy wrapper for the Leaflet.js mapping library, and makes it incredibly easy to generate interactive maps based on...

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Data Transformation in R: The #Tidyverse-Approach of Organizing Data #rstats

February 22, 2017
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Data Transformation in R: The #Tidyverse-Approach of Organizing Data #rstats

Yesterday, I had the pleasure to give a talk at the 8th Hamburg R User-Group meeting. I talked about data wrangling and data transformation, and how the…

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Raccoon | Ch 2.5 – Unbalanced and Nested Anova

February 21, 2017
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Raccoon | Ch 2.5 – Unbalanced and Nested Anova

Raccoon is a free web-book about Statistical Models with R. This chapter tackles two Anova special cases: Unbalanced Anova and Nested Anova . The post Raccoon |...

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The Zero Bug

February 21, 2017
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The Zero Bug

I am going to write about an insidious statistical, data analysis, and presentation fallacy I call “the zero bug” and the habits you need to cultivate to avoid it....

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Free DataCamp for your Classroom

February 21, 2017
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Free DataCamp for your Classroom

Announcing: DataCamp for the classroom, a new free plan for Academics. We want to support every student that wants to learn Data Science. That is why, as of today, professors/teachers/TA’s/…...

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Linear Regression and ANOVA shaken and stirred

February 21, 2017
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Linear Regression and ANOVA concepts are understood as separate concepts most of the times. The truth is they are extremely related to each other being ANOVA a particular case...

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Three R Shiny tricks to make your Shiny app shines (2/3): Semi-collapsible sidebar

February 21, 2017
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Three R Shiny tricks to make your Shiny app shines (2/3): Semi-collapsible sidebar

EDIT: Actually there is a much easier way to do so, by just adding the code below to the UI: tags$script(HTML(“$(‘body’).addClass(‘sidebar-mini’);”)) Thanks at @_pvictorr for suggesting it! Original post:...

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Coming soon!

February 21, 2017
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Coming soon!

We've just received a picture of the cover of the BCEA book, which is really, really close to being finally published!I did...

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How to make a global map in R, step by step

February 21, 2017
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How to make a global map in R, step by step

In this post, I want to walk you through the logic of building a map, step by step ... The post How to make a global map in...

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Use switch() instead of ifelse() to return a NULL

February 21, 2017
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Use switch() instead of ifelse() to return a NULL

Have you ever tried to return a NULL with the ifelse() function? This function is a simple vectorized workflow for conditional statements. However, one can’t just return a...

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Who is Alan Turing?

February 21, 2017
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Who is Alan Turing?

This government is committed to introducing posthumous pardons for people with certain historical sexual offence convictions who would be innocent of any crime now (British Government Spokesperson, September 2016)...

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Sentiment Analysis in R

February 21, 2017
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Current research in finance and the social sciences utilizes sentiment analysis to understand human decisions in response to textual materials. While sentiment analysis has received great traction lately, the...

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First commit or initial commit?

February 20, 2017
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When I create a new .git repository, my first commit message tends to be “1st commit”. I’ve been wondering what other people use as initial commit message. Today I...

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coauthorship and citation networks

February 20, 2017
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coauthorship and citation networks

As I discovered (!) the Annals of Applied Statistics in my mailbox just prior to taking the local train to Dauphine for the first time in 2017 (!), I...

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Training Neural Networks with MXNet

February 20, 2017
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Training Neural Networks with MXNet

Multilayer perceptron Multilayer perceptron (MLP) is the simplest feed-forward neural network. It mitigates the constraints of original perceptron that was able to learn only linearly separable patterns from the data....

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R Weekly

February 20, 2017
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R Weekly

During my Monday morning ritual of avoiding work,  I found this publication that is written in R, for people who use R – R Weekly.  The authors do a pretty awesome...

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rxNeuralNet vs. xgBoost vs. H2O

February 20, 2017
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rxNeuralNet vs. xgBoost vs. H2O

Recently, I did a session at local user group in Ljubljana, Slovenija, where I introduced the new algorithms that are available with MicrosoftML package for Microsoft R Server 9.0.3....

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strcode – structure your code better

strcode – structure your code better

I am pleased to announce my package strcode, a package that should make structuring code easier. You can install it from GitHub, a CRAN submission is planned at a...

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Data Science for Doctors – Part 4 : Inferential Statistics (1/5)

February 20, 2017
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Data Science for Doctors – Part 4 : Inferential Statistics (1/5)

Data science enhances people’s decision making. Doctors and researchers are making critical decisions every day. Therefore, it is absolutely necessary for those people to have some basic knowledge of...

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Yes, you can run R in the cloud securely

February 20, 2017
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Yes, you can run R in the cloud securely

Once thought of as the ‘little programming language that could’, R has fundamentally transformed the way data scientists and organisations use their data. It gives businesses the power to...

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PCA – hierarchical tree – partition: Why do we need to choose for visualizing data?

February 20, 2017
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PCA – hierarchical tree – partition: Why do we need to choose for visualizing data?

Principal component methods such as PCA (principal component analysis) or MCA (multiple correspondence analysis) can be used as a pre-processing step before clustering. But principal component methods give also a framework...

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More tidyverse: using dplyr functions

February 20, 2017
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This week, we return to our “Getting Started With R” series. Today we are going to look at some tools from the “dplyr” package. Hadley Wickham, the creator of dplyr,...

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