R-bloggers

Back in 2001 when I entered university to study Statistics, our professor told us that “Statistics is a perfect way ... Read moreSimpson’s Paradox and Misleading Statistical Inference

  Gross domestic product (GDP) is the total monetary or market value of all the finished goods and services produced within a country's/state’s borders in a specific time period. As a broad measure of overall domestic production, it functions as a comprehensive scorecard of a given country’s/state’...

Background A user on Stackoverflow recently asked a question about a program to generate Monte Carlo simulations on Bernoulli trials to calculate coverage percentages using Wald confidence intervals. One of the problems in the code is that probability...

This week, I’m taking a break from our regular blog content to write about some of the nitty-gritty data science we do within RStudio. Specifically, I’m going to address a question I was asked soon after joining the blogging team: Which of your blog articles received the most ...

Business Intelligence (BI) is used to transform data into actionable insights that provide value to an organization and help achieve its business goals. Reports and dashboards are go-to approaches for modern-day business intelligence tools. At Appsilon, we are big advocates of R and R Shiny, but we also have significant ...

In this post we discuss how to write an R script to solve any Sudoku puzzle. There are some R packages to handle this, but in our case, we’ll write our own solution. For our purposes, we’ll assume the input Sudoku is a 9×9 grid. At the end result, ...

My last 4 posts have all focused on the vaccines being produced to fight COVID-19. They have primarily focused on Bayesian methods (or at least comparing bayesian to frequentist methods). This one follows that pattern and provides expanded cover...

We are in the middle of a mind-boggling natural experiment here in the United States. In spite of the advice from the CDC and dire warnings from our nation’s health care experts, millions of Americans will travel over the long holiday weekend. Although the number of people flying is ...

Considering a binary random walk, starting at zero, what is the probability of being almost sure of winning at some point only to lose at the end? This is the question set by the post-election Riddler, with almost sure meaning above 99% and the time horizon set to n=101 steps (it ...

This report describes an update to the R package ‘dvir’ to add support for the TikZ graphics package. This allows R users to make use ...

Basic Routing for Shiny Web Applications Web applications couldn’t exist without routing. Think about it in terms of the Appsilon website – you’ve visited our home page, navigated to the blog, and opened this particular article. That’s routing in a nutshell – matching UI components to a URL. Appsilon ...