March 2020

Covid-19 interactive map (using R with shiny, leaflet and dplyr)

March 12, 2020 | Thibaut FABACHER

The departement of Public Health of the Strasbourg University Hospital (GMRC, Prof. Meyer) and the Laboratory of Biostatistics and Medical Informatics of the Strasbourg  Medicine Faculty (Prof. Sauleau), to the extent of their means and expertise, are contributing to the fight against Covid-19 infection. Doctor Fabacher has produced an interactive ...
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Keep Calm and Use vtreat (in R and in Python)

March 12, 2020 | John Mount

A big thank you to Dmytro Perepolkin for sharing a “Keep Calm and Use vtreat” poster! Also, we have translated the Python vtreat steps from our recent “Cross-Methods are a Leak/Variance Trade-Off” article into R vtreat steps here. This R-port demonstrates the new to R fit/prepare notation! We ...
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Corona in Belgium

March 12, 2020 | Super User

I lost a few hours this afternoon when digging into the Corona virus data mainly caused by reading this article at this website which gives a nice view on how to be aware of potential issues which can arise when collecting data and to be aware of hidden factors and ... [Read more...]

Dear Data Scientists – how to ease your job!

March 12, 2020 | eoda GmbH

You are the modern Indiana Jones of digitalization! Always on the lookout to increase knowledge, show relations and take your organization to the next level. Just like the great discoverers like Leif Eriksson, Vasco da Gama and Lewis and Clark, you never let yourself be stopped from pursuing an idea ...
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All you need to know on clustering with Factoshiny…

March 11, 2020 | francoishusson

The function Factoshiny of the package Factoshiny proposes a complete clustering strategy that allows you: to draw a hierarchical tree and a partition to describe and characterize the clusters by quantitative and categorical variables to consider lots of individuals thanks to the complementarity of Kmeans and clustering algorithms to consider ...
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Persistent config and data for R packages

March 11, 2020 | Posts on R-hub blog

Does your R package work best with some configuration? You probably want it to be easily found by your package. Does your R package download huge datasets that don’t change much on the provider side? Maybe you want to save the corresponding data somewhere persistent so that things will ... [Read more...]

one or two?

March 11, 2020 | xi'an

A superposition of two random walks from The Riddler: Starting from zero, a random walk is produced by choosing moves between ±1 and ±2 at each step. If the choice between both is made towards maximising the probability of ending up positive after 100 steps, what is this probability? Although the optimal path ... [Read more...]

AsioHeaders 1.12.2-1

March 11, 2020 | Thinking inside the box

An updated minor version of the AsioHeaders package arrived on CRAN today. Asio provides a cross-platform C++ library for network and low-level I/O programming. It is also included in Boost – but requires linking when used as part of Boost. This st... [Read more...]

Naming conventions for variables, functions, etc.

March 11, 2020 | Bob Carpenter

The golden rule of code layout is that code should be written to be readable. And that means readable by others, including you in the future. Three principles of naming follow: 1. Names should mean something. 2. Names should be as short as possible. 3. Use your judgement to balance (1) and (2). The third […] [Read more...]

Defining your own shortcut in RStudio

March 11, 2020 | Matthias Nistler

In this blog post, Matthias shows you how to write and structure code even faster and more efficiently. Learn how to define keyboard shortcuts in RStudio with his step-by-step tutorial. Der Beitrag Defining your own shortcut in RStudio erschien zuerst auf STATWORX.
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Can Trade Explain Covid -19 Cases?

March 10, 2020 | sam

TLDR: I've found an association between number of people that tested positive for COVID-19 in a country and imports from China. In addition there are particular industries that are particularly correlated with COVID-19 rates. Iran is still an outlier taking this information into account.  Intro: Coronavirus (COVID-19) rates of infection ...
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Cross-Methods are a Leak/Variance Trade-Off

March 10, 2020 | John Mount

We have a new Win Vector data science article to share: Cross-Methods are a Leak/Variance Trade-Off John Mount (Win Vector LLC), Nina Zumel (Win Vector LLC) March 10, 2020 We work some exciting examples of when cross-methods (cross validation, and also cross-frames) work, and when they do not work. Abstract Cross-methods ... [Read more...]

Connecting to MAMP install of MySQL in R

March 10, 2020 | Pete Talbert

In the course of doing a web dev tutorial (namely Tania Rascia’s great post on building a simple CRUD app) I had to install MAMP. This gives you a local server environment consisting of Apache, MySQL, and PHP. Since I work with databases so often, I... [Read more...]

R 3.6.3 is available, marking the 20th anniversary of R 1.0.0

March 10, 2020 | David Smith

On February 29, R 3.6.3 was released and is now available for Windows, Linux and Mac systems. This update, codenamed "Holding the Windsock", fixes a few minor bugs, and as a minor update maintains compatibility with scripts and packages written for prior versions of R 3.6. February 29 is an auspicious date, because that ...
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