Critique of “Projecting the transmission dynamics of SARS-CoV-2 through the postpandemic period” — Part 2: Proxies for incidence of coronaviruses

June 17, 2020 | Radford Neal

This is the second in a series of posts (previous post: Part 1) in which I look at the following paper: Kissler, Tedijanto, Goldstein, Grad, and Lipsitch, Projecting the transmission dynamics of SARS-CoV-2 through the postpandemic period, Science, vol. 368, pp. 860-868, 22 May 2020 (released online 14 April 2020).  The paper is also available here, ...
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R Can Pull the Fire Alarm!

June 17, 2020 | R Views

Brian Law is a customer success representative at RStudio and a new R Views contributor. Jason Rich manages all US Data Engineering for PRA Group and studies computer science at Old Dominion University There are times when it would be really nice to get an email from R. Maybe you ...
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Fooled By Randomness

June 16, 2020 | Rory Winston

I recently read the great book Fooled By Randomness by Nicholas Nassim Taleb. There is a nice illustrative example in there on the scaling property of distributions across different time scales. The example is formulated as the hypothetical example of a dentist who has set up a home trading environment ... [Read more...]

Hello hordes!

June 16, 2020 | Colin Fay

Introducing hordes, a module that makes R available from NodeJS. About General philosophy The general idea of hordes is that NodeJS is the perfect tool when it comes to HTTP i/o, hence we can leverage the strength of this ecosystem to build Web Serv... [Read more...]

sans sérif & sans chevron

June 16, 2020 | xi'an

{\sf df=function(x)2*pi*x-4*(x__1)*acos(1/(x+(1-x)*(x symbols in the sans-sérif “\sf” font… Which is a surprise, given the ubiquity of the symbols in R and my LaTeXing books over the years. Must have […] [Read more...]

R tips and tricks – utilities

June 16, 2020 | Eran Raviv

As the title reads, few more R-related tips and tricks. I hope you have not seen those before. Some utilities Methods are functions which are specifically written for particular class. In the post Show yourself (look “under the hood” of a function in R) we saw how to get the ...
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Market Making and The Win/Loss Ratio

June 16, 2020 | Rory Winston

The article https://online.wsj.com/public/resources/documents/VirtuOverview.pdf is a neat little illustration of a simple asymptotic toy distribution given an initial probability of a win or loss per-trade. It is used as an example to illustrate the basic methodology behind the working market-maker business – develop a ... [Read more...]

David Robinson’s R Programming Screencasts

June 16, 2020 | Paul van der Laken

David Robinson (aka drob) is one of the best known R programmers. Since a couple of years David has been sharing his knowledge through streaming screencasts of him programming. It’s basically part of R’s #tidytuesday movement. Alex Cookson decided to do us all a favor and annotate all ...
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Thomas Ramge: Postdigital (Book Excerpt)

June 16, 2020 | Learning Machines

We are honoured to present to you an exclusive excerpt from digital thought leader and bestselling author Thomas Ramge’s new book Postdigital. Using AI to Fight Coronavirus, Foster Wealth and Fuel Democracy: In concrete terms, what would a postdigital world look like in which people — both individually and as ... [Read more...]

Introduction to dplyr

June 16, 2020 | Quantargo Blog

Learn what dplyr does Get an overview of Select, Filter and Sort Learn what Joins, Aggregations and Pipelines are What is dplyr There’s the joke that 80 percent of data science is cleaning the data and 20 percent is complaining about cleaning the data. Anthony Goldbloom, Founder and CEO of Kaggle ...
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Rcpp 1.0.5 in two+ weeks: Please help test

June 15, 2020 | Thinking inside the box

With the current four-month release cycle, the next Rcpp release is due in July following the 1.0.4 release in March. Just prior to the 1.0.4 release I had asked this: It would be particularly beneficial if those with “unsual” build dependencies tested it as we would increase overall coverage beyond what I ... [Read more...]

Logging in R: Why, When, and How

June 15, 2020 | Abraham Mathew

Anyone who is writing R code should get familiar with logging. While it may not be useful for writing exploratory scripts or doing basic coding projects, logging can be critical when doing development work as it helps track what your code is doing. In this post, I will provide some ... [Read more...]
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