Google Summer of Code 2018

March 13, 2018
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Google Summer of Code 2018

R project has been participating in Google Summer of Code (GSoC) since 2008. We have numerous packages which have received code contributions from GSoC participants. This year too, R is participating and there is already an impressive list of potential projects listed at and the project mentors are seeking students to work on these

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Latest USS proposal: Who would lose most?

March 13, 2018
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Latest USS proposal: Who would lose most?

Yesterday the UUK/UCU negotiations at ACAS concluded with an agreement document. In this post I’ll look at the numbers in those proposed interim changes to the Universities Superannuation Scheme, to work out how much money would effectively be lost by USS members at each salary level. This is inevitably a fairly rough calculation, but its

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Automatically importing publications from bibtex to a hugo-academic blog

Automatically importing publications from bibtex to a hugo-academic blog

The problem I am in the process of migrating my (rather ugly) small blog from “Bloggers” to blogdown and, as several others, I choose to use the hugo-academic theme due to its good looks, simplicity, and “focus” towards researchers. One nice feature of hugo-academic is that it includes out-of-the-box a “Publications” section, allowing researchers to easily create a list of their...

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Making maps of the USA with R: alternative layout

Making maps of the USA with R: alternative layout

Introduction Maps of United States often focus only on the contiguous 48 states. In many maps Alaska and Hawaii are simply not shown or are displayed at different geographic scales than the main map. This article shows how to create inset maps of the USA, building on a chapter in the in-development book Geocomputation with R that shows all its...

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Excel is obsolete. Here are the Top 2 alternatives from R and Python.

Excel is obsolete. Here are the Top 2 alternatives from R and Python.

Many companies are still largely managed with spreadsheets. While working with data we have seen the full spectrum of use cases of Excel, including some truly scary ones. There is, however, a clear trend of companies switching to alternatives af...

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Using RSiteCatalyst With Microsoft PowerBI Desktop

March 12, 2018
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Using RSiteCatalyst With Microsoft PowerBI Desktop

With pretty regular frequency I get emails asking if RSiteCatalyst can be used with Microsoft Power BI. While admittedly I’m not a frequent user of the Windows operating system (nor dashboarding tools like Tableau or Power BI), I am pleased to report...

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An Ode to Testing, my first review

An Ode to Testing, my first review

To give you an idea of where I am in my R developer germination, I’d just started reading about testing when I received an email from @rOpenSci inviting me to review the weathercan package. Many of us in the R community feel like imposters when it comes to software development. In fact, as a statistician, it was a surprise...

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Alternative Design for Shiny

March 12, 2018
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Alternative Design for Shiny

Shiny’s Design Most Shiny apps out there have a similar design style. It is usually easy for a seasoned Shiny developer to tell the difference between a Shiny app and a standard website. Why is this? Shiny apps ARE websites for all intents and purposes. Why do they not vary as greatly as the rest of the sites we encounter...

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Excel is obsolete. Here are the Top 2 alternatives from R and Python.

Excel is obsolete. Here are the Top 2 alternatives from R and Python.

Many companies are still largely managed with spreadsheets. While working with data we have seen the full spectrum of use cases of Excel, including some truly scary ones. There is, however, a clear trend of companies switching to alternatives af...

Read more »

TSrepr use case – Clustering time series representations in R

March 12, 2018
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TSrepr use case – Clustering time series representations in R

In the previous blog post, I showed you usage of my TSrepr package. There was shown what kind of time series representations are implemented and what are they good for. In this tutorial, I will show you one use case how to use time series representati...

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Tidy Resampling Redux with Agricultural Economics Data

March 12, 2018
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Tidy Resampling Redux with Agricultural Economics Data

(No...

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Data-driven unit testing for data scientists and quant developers alike

March 12, 2018
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Often overlooked, testing is a critical process that saves time over the long term and enables building complex systems. Unit …Continue reading →

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R-Lab#5: the report & R-Lab#6 ready to go!

March 12, 2018
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The R-Lab#6 is ready to go, and on the occasion, we're also discussing the outcomes and contents of the precedent R-Lab, about personalized medicine. The post R-Lab#5: the report & R-Lab#6 ready to go! appeared first on MilanoR.

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Steel-ing a Makeover from Tariffic Post

March 12, 2018
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Steel-ing a Makeover from Tariffic Post

(FWIW I think I even caused myself pain due to the title of this blog post). Kaiser Fung (@junkcharts) did a makeover post on this chart about U.S. steel tariffs: Kaiser’s makeover is good (Note: just because I said “good” does not mean I’m endorsing the use of pie charts): But, I’m curious as to... Continue reading →

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Exploratory Analysis – When to Choose R, Python, Tableau or a Combination

March 12, 2018
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Exploratory Analysis – When to Choose R, Python, Tableau or a Combination

Not all data analysis tools are created equal. Recently, I started looking into data sets to compete in Go Code Colorado (check it out if you live in CO). The problem with such diversity in data sets is finding a way to quickly visualize the data and do exploratory analysis. While tools like Tableau make data

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Extracting PDF Text with R and Creating Tidy Data

March 12, 2018
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Extracting PDF Text with R and Creating Tidy Data

In the digital age of today, data comes in many forms. Many of the more common file types like CSV, XLSX, and plain text (TXT) are easy to access and manage. Yet, sometimes, the data we need is locked away in a file format that is less accessible such as a PDF. If you have ever found yourself in...

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Cleaning up and combining data, a dataset for practice

March 11, 2018
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tldr: I created an open dataset for the explicit practice of data munging. Feel free to use it in assignments, but do mention where you got it from (CC-by-4.0). Also unicorns are awesome. Find the dataset at: https://github.com/RMHogervorst/unico...

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Gold diggers at the Olympics

March 11, 2018
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Gold diggers at the Olympics

It came to a close two weeks ago. Over two weeks of obsessive watching everything that moves on skis, skates or boards. My tiny country of the Netherlands won about half of all the medals at the speed skating events. Since there are many medals to be won here this made it to end up high in the medal...

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R Tip: Use the vtreat Package For Data Preparation

March 11, 2018
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R Tip: Use the vtreat Package For Data Preparation

If you are working with predictive modeling or machine learning in R this is the R tip that is going to save you the most time and deliver the biggest improvement in your results. R Tip: Use the vtreat package for data preparation in predictive analytics and machine learning projects. When attempting predictive modeling with … Continue reading R...

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Street Crime UK – Shiny App

March 11, 2018
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Street Crime UK – Shiny App

Introduction This is a shiny app to visualize heat maps of Street Crimes across Britain from 2010-12 to 2018-01 and test their spatial pattern. The code for both ui.R and server.R is available from my GitHub at: https://github.com/fveronesi/StreetCrimeUK_Shiny Usage Please be aware that this apps downloads data from my personal Dropbox once it starts and every time the user changes some of the settings....

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Mandalas Colored

March 11, 2018
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Mandalas Colored

Apriétame bien la mano, que un lucero se me escapa entre los dedos (Coda Flamenca, Extremoduro) I have the privilege of being teacher at ESTALMAT, a project run by Spanish Royal Academy of Sciences that tries to detect, guide and stimulate in a continuous way, along two courses, the exceptional mathematical talent of students of … Continue reading Mandalas...

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R: simple for complex tasks, complex for simple tasks

March 10, 2018
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R: simple for complex tasks, complex for simple tasks

When it comes to undertaking complex data science projects, R is the preferred choice for many. Why? Because handling complex tasks is simpler in R than other comparable platforms. Regrettably, the same is not true for performing simpler tasks, which I would argue is rather complex in base R. Hence, the title -- R: simple for complex tasks, complex for...

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Use unique() instead of levels() to find the possible values of a character variable in R

When I first encountered R, I learned to use the levels() function to find the possible values of a categorical variable.  However, I recently noticed something very strange about this function. Consider the built-in data set “iris” and its character variable “Species”.  Here are the possible values of “Species”, as shown by the levels() function. __ levels(iris$Species)

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Textmate setup (Mac only)

Textmate setup (Mac only)

By L. Collado-Torres. For the past 6-7 years I have been using TextMate 2 as my text editor which I’ve found useful for R code, bash, Markdown, etc. You could also look into Sublime Text or use RStudio (post about this setup coming soon). Sometimes students are interested in this setup, which is what I’ll document here. Though I want to...

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Voyage to the intelligent music streaming service: Ep 1. The analysis of Top ranked Songs and Artists

March 10, 2018
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Voyage to the intelligent music streaming service: Ep 1. The analysis of Top ranked Songs and Artists

Prologue In 2013, I had worked on developing a Music Recommendation System as a pilot project, which had not even completed. There were lots of reasons, but the critical one was the choice and concentration strategy of my division. Since then, I keep these passion in my deep mind for a long time, but could

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Benchmarking AWS Instances with MNIST classification

Benchmarking AWS Instances with MNIST classification

In a previous post I have shown you how to setup an AWS instance running the newest RStudio, R, Python, Julia and so forth, where the configuration of the instance can be freely chosen. However, there is quite a lot of possibilities of instance configu...

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Calculating College Basketball rankings using functional programming in R

March 9, 2018
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March Madness is officially upon us as College Basketball teams across the US try to get a few more signature wins on their resume during conference tournaments before Selection Sunday. With only 30 or so games in a given season and around 350 teams in...

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How fractals helped my students to master package development in R

March 9, 2018
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How fractals helped my students to master package development in R

Last semester I taught an R programming at MIMUW. My lectures are project oriented, the second project was related to package development. The idea was straightforward: each team of students shall create a package that produces IFS fractals (based on iterated function systems). Each package shall have two generic functions: create() and plot(), documentation and … Czytaj dalej How...

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styler 1.0.1

styler 1.0.1 is now awailable on CRAN. It’s mainly a maintenance release and contains bug fixes and speed improvements. The highlights are:

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