September 2017

plotly 4.7.1 now on CRAN

September 10, 2017 | Carson Sievert

I’m excited to announce that plotly 4.7.1 is now on CRAN! Along with some important bug fixes and numerous improvements to the underlying plotly.js library, this release includes an exciting new R-specific feature — the ability to modify (i.e., update without a full redraw) an existing plotly graph inside ... [Read more...]

R with remote databases Exercises (Part-1)

September 10, 2017 | Jakub Kwiecien

This is common case when working with data that your source is a remote database. Usual ways to cope this when using R is either to load all the data into R or to perform the heaviest joins and aggregations with SQL before loading the data. Both of them have ... [Read more...]

Recreating the LOB

September 10, 2017 | R and Finance

Update to GetHFData (Version 1.4) - GetHFData newest version (1.4) allows the recreation of the LOB (limit order book) based on order data. A limit order book is the standard format that trading occurs in most exchanges. Order are... [Read more...]

Examining the Changes in Religious Beliefs – Part 2

September 9, 2017 | Timothy Lin

In a previous post, I took a look at the distribution of religious beliefs in Singapore. Having compiled additional characteristics across 3 time periods (2000, 2010, 2015), I decided to write a follow-up post to examine the changes across time. The dataset that I will be using is aggregated from the 2000 and 2010 Census as ...
[Read more...]

Scraping some French medical school rankings

September 9, 2017 | Florian Privé

In this post, I will analyze the results of the “épreuves classantes nationales (ECN)”, which is a competitive examination at the end of the 6th year of medical school in France. First ones get to choose first where they want to continue their medical training. A very clean dataset The ...
[Read more...]

First Steps

September 9, 2017 | R/exams

Overview The basic idea of R/exams is to have a one-for-all exams generator where each exercise is a standalone file, so that the same exercise can be rendered easily into a variety output formats such as e-learning systems or written exams. To reduce the risk of cheating, R/exams ... [Read more...]

Teasing Out Top Daily Topics with GDELT’s Television Explorer

September 9, 2017 | hrbrmstr

Earlier this year, the GDELT Project released their Television Explorer that enabled API access to closed-caption tedt from television news broadcasts. They’ve done an incredible job expanding and stabilizing the API and just recently released “top trending tables” which summarise what the “top” topics and phrases are across news ...
[Read more...]

Installing R/exams

September 8, 2017 | R/exams

1. R The R/exams system is an extension for the R system for statistical computing and hence the first installation step is the base R system. Windows and (Mac) OS X: Go to https://CRAN.R-project.org/, the Comprehensive R Archive Network (CRAN).... [Read more...]

Hurricane Harvey’s rains, visualized in R by USGS

September 8, 2017 | David Smith

On August 26 Hurricane Harvey became the largest hurricane to make landfall in the United States in over 20 years. (That record may yet be broken by Irma, now bearing down on the Florida peninsula.) Harvey's rains brought major flooding to Houston and other coastal areas in the Gulf of Mexico. You ... [Read more...]
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