April 2019

tsbox 0.1: class-agnostic time series

April 14, 2019 | usefulr

The R ecosystem knows a vast number of time series classes: ts, xts, zoo, tsibble, tibbletime or timeSeries. The plethora of standards causes confusion. As different packages rely on different classes, it is hard to use them in the same analysis. tsbox provides a set of tools that make it ...
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MailR SMTP Setup (Gmail, Outlook, Yahoo) | STARTTLS

April 13, 2019 | Kenith Grey

The mailR package allows you to easily send e-mails with R, but you need the right mailR SMTP settings. Getting the SMTP settings just right to establish a connection to e-mail hosts like Gmail, Outlook, or Yahoo can be challenging. This is especially true when there are some settings you ... [Read more...]

Batch Processing of Monotonic Binning

April 13, 2019 | statcompute

In my GitHub repository (https://github.com/statcompute/MonotonicBinning), multiple R functions have been developed to implement the monotonic binning by using either iterative discretization or isotonic regression. With these functions, we can run the monotonic binning for one independent variable at a time. However, in a real-world production environment, ... [Read more...]

Discrete Event Simulation (DES) Metamodeling – Splines with R and Arena

April 13, 2019 | R Blogs by Pedro N. de Lima

Simulation Metamodeling - building and using surrogate models that can approximate results from more complicated simulation models - is an interesting approach to analyze results from complicated, computationally expensive simulation models. Metamodels are useful because they can yield good approximations of the original simulation model response variables using less computational ...
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Introducing graphlayouts with Game of Thrones

April 13, 2019 | schochastics

This post introduces the new R package graphlayouts which is available on CRAN since a few days. We will use network data from the Game of Thrones TV series (seemed timely at the time of writing) to illustrate the core layout algorithms of the package. Most of the algorithms use ... [Read more...]

historical word embeddings & lexical semantic change

April 13, 2019 | Jason Timm

Google n-gram data Nearest-neighbors Procrustes, PCA & visualizing semantic change Detecting semantic change Summary References I have developed a Git Hub guide that demonstrates a simple workflow for sampling Google n-gram data and building historical word embeddings with the aim of investigating lexical semantic change. Here, we build on this workflow, ...
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R as GIS for ecologists

April 13, 2019 | Bruno Silva

Working with spatial data is a key feature in ecological research. Using R to handle this type of data has the great advantage of keeping both variable extraction and modelling in the same environment, instead of recurring to external GIS softwares to compute some variables and then turning to R ...
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First Post

April 12, 2019 | Martin Chan

Why start a R blog? Ever since I discovered r-bloggers and had subsequently learnt immensely from the articles contributed by R users all around the world, I’ve wanted to start a R blog myself. Part of the motivation is give back to the open sourc...
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BDA3 Chapter 1 Exercise 9

April 12, 2019 | Brian Callander

BDA3 Chapter 1 Exercise 9 Posted on 13 April, 2019 by Brian Tags: bda chapter 1, solutions, simulation, poisson process Category: bda3 Here’s my solution to exercise 9, chapter 1, of Gelman’s Bayesian Data Analysis (BDA), 3rd edition. There are solutions to some of the exercises on the book’s webpage. \(\DeclareMathOperator{\dbinomial}{Binomial} \DeclareMathOperator{\... [Read more...]

BatchGetSymbols is now parallel!

April 12, 2019 | R on msperlin

BatchGetSymbols is my most downloaded package by any count. Computation time, however, has always been an issue. While downloading data for 10 or less stocks is fine, doing it for a large ammount of tickers, say the SP500 composition, gets very boring. I’m glad to report that time is no ... [Read more...]
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