We’re delighted to be sponsoring the rstudio::global conference this year. It’s a credit to the community that such events (including our own… The post Overcome the technical hurdles of your RStudio environment...continue reading.
On candy stripe legs the Spiderman comes, softly through the shadow of the evening sun (Lullaby, The Cure) Cellular automata are an inmense source of artistical images. Today, I experimented...continue reading.
Abstract: We consider the age stratified all-cause and COVID-19 associated mortality in Germany during 2020 based on numbers provided by the Federal Statistical Office and the Robert Koch Institute. This...continue reading.
The Riddler has a variant on the classical (discrete) random walk around a circle where every state (but the starting point) has the same probability 1/(n-1) to be visited last....continue reading.
“Mathematician John von Neumann is credited with figuring out how to take a p biased coin and “simulate” a fair coin. Simply flip the coin twice. If it comes up...continue reading.
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...continue reading.
Abstract: Slides, R code and video lectures of our 2020 The Mathematics and Statistics of Infectious Disease Outbreaks summer course at Stockholm University are made available to a wider audience....continue reading.
This little useless-useful R function is not that useless after-all. Many of the R programmers have had some issues with namespaces in R environment and lost some time debugging, that...continue reading.
An intriguing question made a short-lived appearance on the CodeGolf section of Stack Exchange, before being removed, namely the (most concise possible) coding of an arithmetic derivation of the square...continue reading.
The Riddler of this week had a quick riddle: if one does want to avoid parallel parking a car over a six spot street, either the first spot is available...continue reading.
Special thanks to Plotly investor, NVIDIA, for their help in reviewing these open-source Dash applications for autonomous vehicle R&D, and Lyft for initial data visualization development in Plotly. Author: Xing...continue reading.
There are plentiful examples of spreadsheet applications leading analysts astray. Believe all the scary stories. Spreadsheets can silently damage your data, converting numbers to dates or dropping leading zeros from...continue reading.
A book to read most urgently if hoping to take an informed decision by 03 November! Written by a political scientist cum statistician, Ole Forsberg. (If you were thinking of...continue reading.
In this tutorial, I’ll explain how to use the np.random.randn function (AKA, Numpy random randn). The tutorial is divided up into several different sections, including a quick overview of what...continue reading.
Abstract: We attempt a mathematical description of the risk scoring algorithm used in the Google and Apple exposure notification framework (v1). This algorithm is used in many digital contact tracing...continue reading.
A Riddler’s riddle on breaking the unit interval into 4 random bits (by which I understand picking 3 Uniform realisations and ordering them) and finding the length of the bit...continue reading.
The weekly puzzle from Le Monde is another Sudoku challenge: An n by n grid contains all numbers from 1 till n². Is it possible for fill the grid so...continue reading.
The {shinycssloaders} package is a handy little tool that lets you easily add loading animations to a Shiny output (a plot, a table, etc.) while it’s recalculating. It’s extremely easy...continue reading.
Spinning on that dizzy edge (Just Like Heaven, The Cure) This post talks about a generative system called Physarum model, which simulates the evolution of a colony of extremely simple...continue reading.
It has been repeated many times on many platforms, the R (or R⁰) number is not a great summary about the COVID-19 pandemic, see eg Rossman’s warning in The Conversation,...continue reading.
Artificial intelligence / Deep neural networks / Keras / R / R News / Spark
April 22, 2024
GIS / R / R News / Shiny / Visualization
Interactive visualization of geospatial data with R Shiny
April 17, 2021
