As I was working on a research project with graduate students, I became interested in fast and not necessarily very accurate approximations to the normal cdf Φ and its inverse. Reading through this 2010 paper of Richards et al., using for instance (with another version replacing 2/π with the squared root of π/8) and $...

We’ve released the newest version of NIMBLE on CRAN and on our website. NIMBLE is a system for building and sharing analysis methods for statistical models, especially for hierarchical models and computationally-intensive methods (such as MCMC and SMC). Version 0.11.1 is a bug fix release, fixing a bug that was ...

Background With the NBA playoffs going on, I’ve been thinking about the following question: A and B are about to play a game. We know that among all players, A has rank/seed and B has rank/seed . (A higher ranking/seeding … Continue reading →

The RStudio Workbench Juliet Rose release introduces support for VS Code sessions. Previously released as a preview feature in RStudio Server Pro v1.4, VS Code sessions are now fully supported. Once VS Code sessions have been configured, users can laun...

The COVID19 pandemic has raised the profile of public health workers at all levels from the nurses and doctors working on the front lines at our hospitals, to high level state and federal public health officials. I think its a good bet that eighteen months ago few of us had ...

In line with the continuous growth at Jumping Rivers, we are looking to expand our team of dedicated professionals working in our teams. If you are enthusiastic and keen to develop your skills in ...

A question from X validated on why an independent Metropolis sampler of a three component Normal mixture based on a single Normal proposal was failing to recover the said mixture… When looking at the OP’s R code, I did not notice anything amiss at first glance (I was about ...

Watch an introduction to shiny.fluent by Appsilon CTO Marek Rogala. The shiny.fluent portion begins at 2:11:10. This presentation was a part of Appsilon’s Shiny Masterclass at rstudio::global in collaboration with RStudio. Today, Appsilon is officially announcing two new R packages: shiny.fluent and shiny.react. shiny.fluent ...

In the previous article, we examined the performances of covid-19 management of some developed countries and we found that the UK was slightly better than others. This time we are going to predict the spread of disease for about a month in the UK. The algorithm we will use for ...

when we have a dataset and to get clear idea about each parameter the summary of a variable is important. Summarized data will provide the clear idea about the data set. In this tutorial we are going to talk about summarize () function from dplyr package. The post summarize in r, ...