Image contours in R

August 5, 2020 | 0 Comments

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 →
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Books and code

August 3, 2020 | 0 Comments

This comes as the results of two external forces that have prompted me to do some work on the website — specifically the section on books. The first one is the newest version of hugo-academic (which is the engine underlying the whole of my website, together with the R package blogdown). ... [Read more...]

OSF: A Project Management Service Built for Research

August 3, 2020 | 0 Comments

osfr provides a (hopefully) convenient R interface to OSF (Open Science Framework, https://www.osf.io), a free service for managing research developed by the Center for Open Science (COS). osfr completed its rOpenSci peer-review earlier this year and has been available on CRAN since February. Throughout its development and ... [Read more...]

A hurdle model for COVID-19 infections in nursing homes

August 3, 2020 | 0 Comments

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 ...
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R GUI Update: BlueSky User’s Guide, New Features

August 3, 2020 | 0 Comments

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 →
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finding contour lines

August 3, 2020 | 0 Comments

Finally, the R package you all have been waiting for has arrived - image.ContourDetector developed at https://github.com/bnosac/image. It detects contour lines in images alongside the 'Unsupervised Smooth Contour Detection' algorithm available at http://www.ipol.im/pub/art/2016/175. Have you always wanted to be able ... [Read more...]

Party with R: How the Community Enabled Us to Write a Book

August 2, 2020 | 0 Comments

Isabella C. Velásquez, MS, is a data analyst committed to nonprofit work with the aim of reducing racial and socioeconomic inequities. “It is like a party all the time; nobody has to worry about giving one or being invited; it is going on every day in the street and ... [Read more...]

How to measure spatial diversity and segregation?

August 2, 2020 | 0 Comments

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. ...
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Effect of COVID-19 on Our Mobility

August 2, 2020 | 0 Comments

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 ...
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Credit Risk Modelling using Machine Learning: A Gentle Introduction

August 2, 2020 | 0 Comments

Are you interested in guest posting? Publish at DataScience+ via your RStudio editor. Category Programming Tags Decision Trees Logistic Regression Machine Learning R Programming Random Forests Assume you are given a dataset for a large bank and you are tasked to come up with a credit risk score for each ... [Read more...]

Weathering the Storm

August 1, 2020 | 0 Comments

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 ...
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How to manage credentials and secrets safely in R

August 1, 2020 | 0 Comments

Are you interested in guest posting? Publish at DataScience+ via your RStudio editor. Category Programming Tags credentials lares R Programming yaml yml If you have ever received an embarrassing message with a warning saying that you may have published your credentials or secrets when publishing your code, you know what ... [Read more...]

Why R? 2020 (Remote) Call for Papers Extended

July 31, 2020 | 0 Comments

This decided to give you one more week to submit a talk or a workshop to Call for Papers for 2020.whyr.pl remote conference. Please fill this form 2020.whyr.pl/submit/ if you are interested in an active participation. The new deadline for submissi... [Read more...]

Handling R6 objects in C++

July 30, 2020 | 0 Comments

Introduction When we are using R6 objects and want to introduce some C++ code in our project, we may also want to interact with these objects using Rcpp. With this objective in mind, the key to interacting with R6 objects is that they are essentially... [Read more...]
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