Suggests and Vignettes

March 24, 2017
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Dirk Eddelbuettel quite rightly reminded us the other day that Suggests is not Depends. I am sorry to say that I am one of those who are using Suggests… “casually”. Mea culpa. I must say that this is restricted to vignettes: there are no tests nor examples using suggested packages. But I am not checking… Continuar leyendo...

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On a First Name Basis with Statistics Sweden

March 24, 2017
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On a First Name Basis with Statistics Sweden

Abstract Jugding from recent R-Bloggers posts, it appears that many data scientists are concerned with scraping data from various media sources (Wikipedia, twitter, etc.). However, one should be aware that...

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Comparing subreddits, with Latent Semantic Analysis in R

March 24, 2017
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Comparing subreddits, with Latent Semantic Analysis in R

FiveThirtyEight published a fascinating article this week about the subreddits that provided support to Donald Trump during his campaign, and continue to do so today. Reddit, for those not...

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Building Shiny App Exercises (part-8)

March 24, 2017
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Building Shiny App Exercises (part-8)

Transform your App into Dashboard Now that we covered the basic staff that you need to know in order to build your App it is time to enhance its...

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Superpixels in imager

March 24, 2017
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Superpixels in imager

Superpixels are used in image segmentation as a pre-processing step. Instead of segmenting pixels directly, we first group similar pixels into “super-pixels”, which can then be processed further (and...

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Writing a conference abstract the data science way

March 24, 2017
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Writing a conference abstract the data science way

Adnan Fiaz Conferences are an ideal platform to share your work with the wider community. However, as we all know, conferences require potential speakers to submit abstracts about their...

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Some Random Weekend Reading

March 24, 2017
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by Joseph Rickert 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....

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R Weekly Bulletin Vol – I

March 24, 2017
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R Weekly Bulletin Vol – I

We are starting with R weekly bulletins which will contain some interesting ways and methods to write codes in R and solve bugging problems. We will also cover R...

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Web data acquisition: parsing json objects with tidyjson (Part 3)

March 24, 2017
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Web data acquisition: parsing json objects with tidyjson (Part 3)

The collection of example flight data in json format available in part 2, described the libraries and the structure of the POST request necessary to collect data in a...

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R – Change columns names in a spatial dataframe

March 24, 2017
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R – Change columns names in a spatial dataframe

Ordnance Survey have a great OpenRoads dataset, but unfortunately it contains a column called ‘primary’, which is a keyword in SQL. This makes it challenging/impossible to import the OpenRoads...

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Neural Networks for Learning Lyrics

March 24, 2017
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Neural Networks for Learning Lyrics

I created a Twitter account which was inspired by a couple Twitter accounts that applied a particular type of machine learning technique to learn how two (at the time)...

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Lesser known purrr tricks

purrr is package that extends R’s functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some...

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Emojis Analysis in R

March 23, 2017
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Emojis Analysis in R

A while ago I developed and shared an emoji decoder because I was facing problems when retrieving data from Twitter and Instragram. In a nutshell,...

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RApiDatetime 0.0.1

March 23, 2017
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Very happy to announce a new package of mine is now up on the CRAN repository network: RApiDatetime. It provides six entry points for C-level functions of the...

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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...

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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...

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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

...

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Make the [R] Kenntnis-Tage 2017 your stage

March 23, 2017
By
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...

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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,...

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10 Million Dots: Mapping European Population

March 23, 2017
By
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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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:...

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