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If you’ve tried submitting a package on CRAN, you might have heard of WinBuilder, as it is mentioned in CRAN submission checklist. In this post inspired by reading R-package-devel archive, we shall go through important questions around WinBuilder. What is WinBuilder and why use it? As mentioned in its ... [Read more...]

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This post is to announce that version 1.5.0 of the foreach package is now on CRAN. Foreach is an idiom that allows for iterating over elements in a collection, without the use of an explicit loop counter. The foreach package is now more than 10 years old, and is used by nearly 700 ... [Read more...]

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Graphical User Interfaces (GUIs) for the R language help beginners get started learning R, help non-programmers get their work done, and help teams of programmers and non-programmers work together by turning code into menus and dialog boxes. There has been … Continue reading → [Read more...]

Learning Machines proudly presents a guest post by Martijn Weterings from the Food and Natural Products research group of the Institute of Life Technologies at the University of Applied Sciences of Western Switzerland in Sion. The topic of this post will be the fitting with the R-package optim. Food? That ... [Read more...]

I’ve been working with sparse matrices in R recently (those created using Matrix::Matrix with the option sparse=TRUE) and found it difficult to track down documentation about what the slots in the matrix object are. This post describes the slots in … Continue reading → [Read more...]

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# Libraries
packages <- 
  c("data.table",
    "rlist",
    "stringr",
    "DT",
    "janitor",
    "readxl",
    "xlsx"
    )

if (length(setdiff(packages,rownames(installed.packages()))) > 0) {
  install.packages(setdiff(packages, rownames(installed.packages())))  
}

invisible(lapply(packages, library, character.only = TRUE))

knitr::opts_chunk$set(comment=NA, fig.width=12, fig.height=8, out.width = '100%')

Introduction Redwall Analytics had the pleasure of collaborating with Marc Joffe, of Reason Foundation, in its October 2018 post Replicating Yankee Institute Risk Score Over 15 Years for 150 Connecticut towns. This involved taking a well organized public dataset from the State’s website, and analyzing and building an application to view ... [Read more...]

Affiliation Harrison – Center for Strategic and Budgetary Analysis, Washington DC Cara – Department of the Air Force (Studies, Analyses, and Assessments - AF/A9), Washington DC Disclaimer The views expressed in this article represent the personal views of the author and are not necessarily the views of the Department of Defense (... [Read more...]

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Due to the unprecedented technological progress that has been made in years past, the current climate allows us to monitor this pandemic better than any other pandemic in the past. We will argue, however, that R was instrumental in predicting when the 1,000,000th case of COVID-19 will occur, as demonstrated ... [Read more...]

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R is a powerful data science language because, like Matlab, numpy, and Pandas, it exposes vectorized operations. That is, a user can perform operations on hundreds (or even billions) of cells by merely specifying the operation on the column or vector of values. Of course, sometimes it takes a while ... [Read more...]

Motivated by a successful turnaround of visits of Why R? 2019 keynote talks that uploaded to Why R? YouTube channel we decided to start Why R? Webinars series! We hope this will impact the growth of the R community. Details channel: youtube.com/... [Read more...]

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