Setting up VS Code for Python Development like RStudio

July 14, 2020 | 0 Comments

In this article I will highlight the features of VS Code that match RStudio exactly, such as the “interactive notebook window” (called the Console in R) or the “variable explorer” (like running View() on a data frame in RStudio). At the bottom of this post I will provide two JSON ...
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Doing Maths Symbolically: R as a Computer Algebra System (CAS)

July 14, 2020 | 0 Comments

When I first saw the Computer Algebra System Mathematica in the nineties I was instantly fascinated by it: you could not just calculate things with it but solve equations, simplify, differentiate and integrate expressions and even solve simple differential equations… not just numerically but symbolically! It helped me a lot ... [Read more...]

Maintaining an R Package – Community Call Summary

July 13, 2020 | 0 Comments

In March we held a Community Call discussing the maintenance of R packages. This call included a starting presentation by Julia Silge followed by a discussion featuring panelists with a wide variety of backgrounds: Elin Waring, Erin Grand, Leonardo Collado-Torres and Scott Chamberlain. The rOpenSci Package Maintenance Community Call was ...
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R Package Integration with Modern Reusable C++ Code Using Rcpp – Part 2

July 13, 2020 | 0 Comments

Daniel Hanson is a full-time lecturer in the Computational Finance & Risk Management program within the Department of Applied Mathematics at the University of Washington. His appointment followed over 25 years of experience in private sector quantitative development in finance and data science. In the first post in this series, we looked ...
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RStudio Connect 1.8.4

July 13, 2020 | 0 Comments

A place for Python applications For data science teams looking to promote data-driven decision making within an organization, interactive applications built in R and Python are often the gold standard. These interactive tools, built by data science teams, are powerful when put in the hands of the right people, but ...
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Regression discontinuity model for TV series

July 12, 2020 | 0 Comments

In September, we are usually happy to see our favorite TV series back on air… Or not? Because admit it, if we are happy to see those characters back, most of the time, we are disappointed. So why not look at the data, to confirm this feeling? Nazareno Andrade shared ...
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clientsdb – A docker image with clients comments

July 12, 2020 | 0 Comments

Have you ever been looking for a ready to use database while doing training? Search no more, this docker is an image with a client review database dropped inside a postgre, to be used for teaching. About the dataset The titles and comments are extrac... [Read more...]

Winners of the 2nd Annual Shiny Contest

July 12, 2020 | 0 Comments

At rstudio::conf(2020) we announced the Shiny Contest 2020. Since then, lots changed in the world, and we decided to hold off on announcing the results of the contest for a bit. Today we would like to take some time to acknowledge the w...
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Comparing Variable Importance Functions (For Modeling)

July 12, 2020 | 0 Comments

I’ve been doing some machine learning recently, and one thing that keeps popping up is the need to explain the models and their components. There are a variety of ways to go about explaining model features, but probably the most common approach is to use variable (or feature) importance ...
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Riddle of the lanes

July 12, 2020 | 0 Comments

An express riddle from the Riddler about reopening pools, where lanes are allowed provided there is no swimmer in the lane or in any of the adjacent lanes. If swimmers pick their lane at random (while they can), what is the average number of occupied lanes? If there are n ...
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Twin lambs with different fathers

July 12, 2020 | 0 Comments

I just learned that in sheep, lambs from the same litter pretty often have different fathers, if the ewe has mated with different males. Berry et al. (2020) looked at sheep flocks on Irland that used more than one ram, and: Of the 539 pairs of twins included in the analysis, 160 (i....
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future and future.apply – Some Recent Improvements

July 11, 2020 | 0 Comments

There are new versions of future and future.apply - your friends in the parallelization business - on CRAN. These updates are mostly maintenance updates with bug fixes, some improvements, and preparations for upcoming changes. It’s been some time since I blogged about these packages, so here is the ... [Read more...]

drat 0.1.7: New functionality

July 11, 2020 | 0 Comments

A new version of drat arrived on CRAN yesterday. Once again, this release is mostly the work of Felix Ernst who extended some work from the previous release, and added support for repository updates (outside of package insertion) and more. drat stan... [Read more...]

Spotify Cross-Playlist Predictions, Part 1

July 11, 2020 | 0 Comments

This is the first of probably two posts detailing the construction of an RShiny app. The app in question is meant to take data from two Spotify playlists, make recommendations for tracks from one – which I’ll call the “target” playlist – based on the contents of another – the “reference” playlist. ...
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