During a recent class a student asked whether bootstrap confidence intervals were more robust than confidence intervals estimated using the standard error (i.e. \(SE = \frac{s}{\sqrt{n}}\)). In order to answer this question I wrote a function to simulate taking a bunch of random samples from a population, ... [Read more...]

My son has been learning Python and wanted to know how many rounds does it take, on average, for someone to win the game of war. If you are not familar with the game, it is a two player game where each player gets half a deck of cards (26). For ... [Read more...]

TL;DR Run shiny::runGitHub('jbryer/ShinyPoster') see an example poster. Go to https://github.com/jbryer/ShinyPoster to download the template Introduction In the past several years academic conferences have begun to display poster presentations el... [Read more...]

I am working on a project where I need to upload PDFs generated from Rmarkdown to a SFTP server. The sftp R package is a nice wrapper to the RCurl package for handling SFTP access. But to my surprise, SFTP support is not included on Macs by default through the ... [Read more...]

First, I want to give a plug to the RStats Strava Running Club. If you are into running, it is a great group that provides lots of support. This post is inspired by this streetmaps tutorial over at ggplot2tutor.com on creating map artwork/posters. ... [Read more...]

TL;DR: You can test this approach using this Github Gist. R Shiny Apps have become a popular way of creating web applications in R. There are many ways of running Shiny Apps including locally in RStudio, on Shinyapps.io or installing the server software on your own host. I ... [Read more...]

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