R-bloggers

I recently came across this short fun post on R-bloggers that demonstrated how to use the image.ContourDetector package (available on CRAN) to extract contours from an image. The image of the contours looked really cool so I thought I would … Continue reading →

Late last year, I added a mixture distribution to the simstudy package, largely motivated to accommodate zero-inflated Poisson or negative binomial distributions. (I really thought I had added this two years ago - but time is moving so slowly these days.) These distributions are useful when modeling count data, but ...

The BlueSky Statistics graphical user interface (GUI) for the R language has added quite a few new features (described below). I’m also working on a BlueSky User’s Guide, a draft of which you can read about and download here. Although … Continue reading →

The raceland package implements a computational framework for a pattern-based, zoneless analysis and visualization of (ethno)racial topography. The main concept in this package is a racial landscape (RL). It consists of many large and small patches (racial enclaves) formed by adjacent raster grid cells having the same race categories. ...

As the monsoon season (finally) ends, another TokyoR meetup! Since COVID hit all of TokyoR’s meetups since February have been done online and the transition has been seamless thanks to the efforts of the TokyoR organizing team. ...

I just moved to NYC in January 2020. My reason for moving was to enjoy the socially rich community and the plethora of activities that I could explore, such as museums, cute little theaters, Broadway shows, fancy stores, riding the subway and watching people, restaurants and the fun nightlife. And I ...

Covid-19 began battering the financial markets in February. Which sectors are faring best? I’ll compare each sector in the S&P 500 with the overall market. And I’ll baseline each at 100% as of February 19th, 2020 so we can see which have recovered lost ground. symbols % ungroup() With all that ...

Choroplethr v3.6.4 is now on CRAN. This is the first update to the package in two years, and was necessary because of a recent change to the tigris package, which choroplethr uses to make Census Tract maps. I also took this opportunity to add new example demographic data for Census ...

fairmodels: let’s fight with biased Machine Learning models (part 1 — detection) Author: Jakub Wiśniewski TL;DR The fairmodels R Package facilitates bias detection through model visualizations. It implements few mitigation strategies that could reduce the bias. It enables easy to use checks for fairness metrics and comparison between different ...

Explainable 'AI' using Gradient Boosted randomized networks Pt2 (the Lasso).