December 2017

Naming things is hard

December 3, 2017 | Rstats on Jon Calder

‘There are only two hard things in Computer Science: cache invalidation and naming things.’ The above quip by Phil Karlton is fairly well known and often quoted, sometimes with amusing extensions: There are two hard things in computer science: cache invalidation, naming things, and off-by-one errors.— Jeff Atwood (@codinghorror) August 31, 2014 ...
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How to Show R Inline Code Blocks in R Markdown

December 3, 2017 | R Views

Inline code with R Markdown R Markdown is a well-known tool for reproducible science in R. In this article, I will focus on a few tricks with R inline code. Some time ago, I was writing a vignette for my package WordR. I was using R Markdown. At one point ... [Read more...]

Naming things is hard

December 3, 2017 | Jon Calder's R Blog

Prefixing R function names - ‘There are only two hard things in Computer Science: cache invalidation and naming things.’ The above quip by Phil Karlton is fairly well known and often quoted, sometimes with amusing extensions: There are two hard things in computer science: cache invalidation, naming things, and off-by-one ...
[Read more...]

Infamous Inf – Part II

December 3, 2017 | Kenith Grey

R’s Inf keyword – Have you’ve ever wondered what to do with it? If so, this is the second in series of posts that explore how we can exploit the keyword’s interesting properties to get the answers we need and improve code robustness. If you want to catch ... [Read more...]

Explain! Explain! Explain!

December 3, 2017 | smarterpoland

Predictive modeling is fun. With random forest, xgboost, lightgbm and other elastic models… Problems start when someone is asking how predictions are calculated. Well, some black boxes are hard to explain. And this is why we need good explainers. In the June Aleksandra Paluszynska defended her master thesis Structure mining ... [Read more...]

A Tidytext Analysis of the Weinstein Effect

December 2, 2017 | R on Gokhan Ciflikli, Ph.D.

Quantifying He-Said, She-Said: Newspaper Reporting I have been meaning to get into quantitative text analysis for a while. I initially planned this post to feature a different package (that I wanted to showcase), however I ran into some problems with their .json parsing methods and currently waiting for the issue ...
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MMC Queues

December 2, 2017 | R on Thomas Roh

Introduction Queueing Theory is the quantitative study of operational characteristics of a system of workflows for a service/process given a processing time, an arrival pattern, and a limitation of resources. It can answer questions such as: How long would a customer/part/etc. (entities) wait to be processed? What ... [Read more...]

A Tidytext Analysis of the Weinstein Effect

December 2, 2017 | Computational Social Science

Quantifying He-Said, She-Said: Newspaper Reporting I have been meaning to get into quantitative text analysis for a while. I initially planned this post to feature a different package (that I wanted to showcase), however I ran into some problems with their .json parsing methods and currently waiting for the issue ...
[Read more...]

Please inspect your dplyr+database code

December 2, 2017 | John Mount

A note to dplyr with database users: you may benefit from inspecting/re-factoring your code to eliminate value re-use inside dplyr::mutate() statements. If you are using the R dplyr package with a database or with Apache Spark: I respectfully advise you inspect your code to ensure you are not ... [Read more...]

Getting Started with R

December 2, 2017 | suresh kumar Gorakala

Rstudio OverView we have 4 panes1) script pan - to write and save the programing script2) Console pane - where all the code will get executed3) Environment/history pane - displays all the variables created,functionsused with in the current session4) Helper pane - contains multiple tabs to install/display pacakges,... [Read more...]

Correlated log-normal chain-ladder model

December 1, 2017 | R on mages' blog

On 23 November Glenn Meyers gave a fascinating talk about The Bayesian Revolution in Stochastic Loss Reserving at the 10th Bayesian Mixer Meetup in London. Glenn Meyers speaking at the Bayesian Mixer Glenn worked for many years as a research actuary at Verisk/ ISO, he helped to set up the CAS ...
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Note On My Emerging Workflow for Working With Binderhub

December 1, 2017 | Tony Hirst

Yesterday saw the public reboot of Binder / MyBinder (which I first wrote about a couple of years ago here), as reported in The Jupyter project blog post Binder 2.0, a Tech Guide and this practical guide: Introducing Binder 2.0 — share your interactive research environment. For anyone not familiar with Binder / MyBinder, it’... [Read more...]

Analysing iOS App Store iTunes Reviews in R

December 1, 2017 | Abdul Majed Raja

Unlike Google PlayStore Developer Console for Android App, iOS App Store’s iTunes Connect does not help developers with the bulk download of App Store iTunes Reviews. So if you are an iOS App Developer or a Mobile App Product Manager, You are left with no option but to get ...
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