Publications by R Views
R Package Integration with Modern Reusable C++ Code Using Rcpp – Part 4
Daniel Hanson is a full-time lecturer in the Computational Finance & Risk Management program within the Department of Applied Mathematics at the University of Washington. In the previous post in this series, we looked at how to write interface files using Rcpp to call functions and instantiate classes in standard and reusable C++, with a code int...
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R Package Integration with Modern Reusable C++ Code Using Rcpp – Part 5
Daniel Hanson is a full-time lecturer in the Computational Finance & Risk Management program within the Department of Applied Mathematics at the University of Washington. In the previous post, we went through the build processes for a simple package containing a single C++ .cpp file, using the rcpp_hello_world.cpp example that is included by defa...
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July 2020: “Top 40” New CRAN Packages
One hundred sixty-one new packages made it to CRAN in July. Here are my “Top 40” picks in seven categories: Computational Methods, Data, Genomics, Machine Learning, Science, Statistics, and Utilities. Computational Methods libgeos v3.8-1-3: Implements API access the Open Source Geometry Engine GEOS which can be used to write high-performance ...
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Crowd Counting Consortium Crowd Data and Shiny Dashboard
Jay Ulfelder, PhD, serves as Program Manager for the Nonviolent Action Lab, part of the Carr Center for Human Rights Policy at the Harvard Kennedy School. He has used R to work at the intersection of social science and data science for nearly two decades. Where are people in the United States protesting in 2020, and what are they protesting about...
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Fake Data with R
Simulation is the foundation of computational statistics and a fundamental organizing principle of the R language. For example, few complex tasks are more compactly expressed in any programming language than rnorm(100). But while many simulation tasks are trivial in R, simulating adequate and convincing synthetic or “fake” data is a task whos...
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Some Thoughts on R / Medicine 2020
The third annual R / Medicine Conference was held online this year from August 27th to August 29th and was an unqualified success. The last minute pivot from small, in-person conference, which was to be held onsite at the Children’s Hospital of Philadelphia, CHOP, to a virtual event turned out to be a catalyst for positive change. Under the ima...
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August 2020: “Top 40” New CRAN Packages
One hundred forty-six new packages stuck to CRAN in August. Below, are my “Top 40” picks in eleven categories: Computational Methods, Data, Genomics, Insurance, Machine Learning, Mathematics, Medicine, Statistics, Time Series, Utilities and Visualization. Computational Methods dpseg v0.1.1: Implements an algorithm for piecewise linear segment...
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R Package Integration with Modern Reusable C++ Code Using Rcpp – Part 6
In this final post of the six part series on R package integration with modern reusable C++ Code using Rcpp, we will look at providing documentation for an R package. To review, we previously covered the following topics: Installation and configuration of an Rcpp package project in RStudio Design considerations for integrating R with reusable C+...
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Fake Survival Data for the Disease Progression Model
In a previous post, I showed some examples of simulating fake data from a few packages that are useful for common simulation tasks and indicated that I would be following up with a look at simulating survival data. A tremendous amount of work in survival analysis has been done in R1 and it will take some time to explore what’s out there. In thi...
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Help Delphi’s COVIDcast Project fight the pandemic!
The Delphi epidemiological forecasting group at Carnegie Mellon University is undertaking a massive effort to develop leading indicators for COVID-19 outbreaks, and if you are an R or Python developer you can help. Delphi is working with both Facebook and Google to analyze the data from daily surveys that ask respondents if they (or people they k...
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