April 2019

BayesComp 20 [full program]

April 15, 2019 | xi'an

The full program is now available on the conference webpage of BayesComp 20, next 7-10 Jan 2020. There are eleven invited sessions, including one j-ISBA session, and a further thirteen contributed sessions were selected by the scientific committee. Calls are still open for tutorials on Tuesday 07 January (with two already planed on ...
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Two perspectives on regularization

April 15, 2019 | Fabian Dablander

Regularization is the process of adding information to an estimation problem so as to avoid extreme estimates. Put differently, it safeguards against foolishness. Both Bayesian and frequentist methods can incorporate prior information which leads to regularized estimates, but they do so in different ways. In this blog post, I illustrate ...
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Yield curve predictions are hard

April 14, 2019 | R on OSM

Introduction What is a yield curve? (Skip if you already know!) Show me the data! (Start here if don’t want the background) Investing pundits like to quote the yield curve as a nearly infallible indicator for the next recession. But what do the ...
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Yield curve predictions are hard

April 14, 2019 | R on OSM

Introduction What is a yield curve? (Skip if you already know!) Show me the data! (Start here if don’t want the background) Investing pundits like to quote the yield curve as a nearly infallible indicator for the next recession. But what do th...
[Read more...]

Custom contrasts in emmeans

April 14, 2019 | Very statisticious on Very statisticious

Following up on a previous post, where I demonstrated the basic usage of package emmeans for doing post hoc comparisons, here I’ll demonstrate how to make custom comparisons (aka contrasts). These are comparisons that aren’t encompassed by the built-in functions in the package. Remember that you can explore ... [Read more...]

rversions 1.1.0 is on CRAN!

April 14, 2019 | R-hub blog

Version 1.1.0 of the rversions package has been released on CRAN! rversions queries the main R SVN repository to find the versions r-release and r-oldrel refer to, and also all previous R versions and their release dates. Get rversions’s latest version from a safe CRAN mirror near you: install.packages("...
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New package: GetBCBData

April 14, 2019 | R on msperlin

The Central Bank of Brazil (BCB) offers access to its SGS system (sistema gerenciador de series temporais) with a official API available here. With time, I find myself using more and more of the available datasets in my regular research and studies. Over last weekend I decided to write my ... [Read more...]

{attempt} 0.3.0 is now on CRAN

April 14, 2019 | Colin Fay

Last week, a new version of {attempt} was published on CRAN. This version includes some improvements in the current code base, and the addition of new functions. You can get it with our old friend install.packages install.packages("attempt") News i... [Read more...]

Tidying Video Game Metadata: A Case Study

April 14, 2019 | Arvid Kingl

CategoriesData Management Tags Case Study Data Manipulation Data Visualisation R Programming tidyverse This article was jointly written by Arvid J. Kingl & Viktor Konakovsky The Battle for Wesnoth is an open-source, turn-based strategy game. The game world is rich, with several factions, maps and literally hundreds of available units. In this ...
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Data Science Capstone – Milestone Report

April 14, 2019 | John

Executive Summary This is the Milestone Report for the Coursera Data Science Capstone project. The goal of the capstone project is to create a predictive text model using a large text corpus of documents as training data. Natural language processing techniques will be used to perform the analysis and build ... [Read more...]

Piping is Method Chaining

April 14, 2019 | John Mount

What R users now call piping, popularized by Stefan Milton Bache and Hadley Wickham, is inline function application (this is notationally similar to, but distinct from the powerful interprocess communication and concurrency tool introduced to Unix by Douglas McIlroy in 1973). In object oriented languages this sort of notation for function ... [Read more...]
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