April 2019

Risk and return for B3

April 30, 2019 | R on msperlin

One of the subjects that I teach in my undergraduate finance class is the relationship between risk and expected returns. In short, the riskier the investment, more returns should be expected by the investor. It is not a difficult argument to make. All that you need to understand is to ... [Read more...]

Building a Shiny App as a Package

April 30, 2019 | Colin Fay

Shiny App as a Package In a previous post, I’ve introduced the {golem} package, which is an opinionated framework for building production-ready Shiny Applications. This framework starts by creating a package skeleton waiting to be filled. But, in a world where Shiny Applications are mostly created as a series ... [Read more...]

Spatial data and maps conference – FOSS4G

April 30, 2019 | mikerspencer

I’m helping organise a conference on (geo)spatial open source software – FOSS4G. We’re hosting it in the great city of Edinburgh, Scotland in September 2019. Abstract submissions: https://uk.osgeo.org/foss4guk2019/talks_workshops.html We’re very interested in hearing… Continue reading →
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RcppArmadillo 0.9.400.2.0

April 29, 2019 | Thinking inside the box

A new RcppArmadillo release based on the very recent Armadillo upstream release arrived on CRAN earlier today, and will get to Debian shortly. Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balan... [Read more...]

Could not Resist

April 29, 2019 | John Mount

Also, Practical Data Science with R, 2nd Edition; Zumel, Mount; Manning 2019 is now content complete! It is deep into editing and soon into production!
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Compute R2s and other performance indices for all your models!

April 29, 2019 | R on easystats

Indices of model performance (i.e., model quality, goodness of fit, predictive accuracy etc.) are very important, both for model comparison and model description purposes. However, their computation or extraction for a wide variety of models can be complex. To address this, please let us introduce the performance package! performance ...
[Read more...]

Analysing the HIV pandemic, Part 1: HIV in sub-Sahara Africa

April 29, 2019 | R Views

Phillip (Armand) Bester is a medical scientist, researcher, and lecturer at the Division of Virology, University of the Free State, and National Health Laboratory Service (NHLS), Bloemfontein, South Africa Sabeehah Vawda is a pathologist, researcher, and lecturer at the Division of Virology, University of the Free State, and National Health ...
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Relaunching the qualtRics package

April 29, 2019 | Rstats on Julia Silge

Note: cross-posted with the rOpenSci blog. rOpenSci is one of the first organizations in the R community I ever interacted with, when I participated in the 2016 rOpenSci unconf. I have since reviewed several rOpenSci packages and been so happy to be co... [Read more...]

Compute R2s and other performance indices for all your models!

April 29, 2019 | R on easystats

Indices of model performance (i.e., model quality, goodness of fit, predictive accuracy etc.) are very important, both for model comparison and model description purposes. However, their computation or extraction for a wide variety of models can be complex. To address this, please let us introduce the performance package! performance ...
[Read more...]

Marketing with Machine Learning: Apriori

April 29, 2019 | Detroit Data Lab

This is part 1 of an ongoing series, introduced in Detroit Data Lab Presents: Marketing with Machine Learning Introduction Apriori, from the latin “a priori” means “from the earlier.” As with many of our predictions, we’re learning from the past and applying it toward the future. It’s the “Hello ...
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