RProtoBuf 0.4.17: Robustified

March 28, 2020
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A new release 0.4.17 of RProtoBuf is now on CRAN. RProtoBuf provides R with bindings for the Google Protocol Buffers (“ProtoBuf”) data encoding and serialization library used and released by Google, and deployed very widely in numerous projects a...

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A deep dive into glmnet: predict.glmnet

March 27, 2020
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A deep dive into glmnet: predict.glmnet

I’m writing a series of posts on various function options of the glmnet function (from the package of the same name), hoping to give more detail and insight beyond...

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Grid Search and Bayesian Hyperparameter Optimization using {tune} and {caret} packages

March 27, 2020
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Grid Search and Bayesian Hyperparameter Optimization using {tune} and {caret} packages

Are you interested in guest posting? Publish at DataScience+ via your RStudio editor. Category Advanced Modeling Tags Bayesian Optimization caret classification Machine Learning R Programming A priori there is no guarantee that tuning hyperparameter(HP) will improve the...

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Mean expectations

March 27, 2020
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Mean expectations

We’re taking a break from our extended analysis of rebalancing to get back to the other salient parts of portfolio construction. We haven’t given up on the deep dive...

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Le Monde puzzle [#1133]

March 27, 2020
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Le Monde puzzle [#1133]

A weekly Monde current mathematical puzzle that reminded me of an earlier one (but was too lazy to check): If ADULE-ELUDE=POINT, was is the largest possible value of POINT?...

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E-Learning Quizzes with R/exams for Moodle and OpenOLAT

March 27, 2020
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E-Learning Quizzes with R/exams for Moodle and OpenOLAT

Step-by-step tutorials for generating, importing, and customizing online tests and quizzes using exams2moodle() and exams2openolat() in R/exams. ...

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Simulating your Model Training for Robust ML Models

March 27, 2020
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Simulating your Model Training for Robust ML Models

In this post, I will explain you why one should run simulations on their model training process so the models don’t fail in production. Traditionally we are always used...

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A COVID Small Multiple

March 27, 2020
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A COVID Small Multiple

John Burn-Murdoch has been doing very good work at the Financial Times producing various visualizations of the progress of COVID-19. One of his recent images is a small-multiple plot...

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COVID-19 Resource Gallery

March 27, 2020
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We have gathered interesting COVID-19 resources and made them easily accessible within a single gallery website. The Data Science community is showing a great spirit of collaboration, extensively contributing to...

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Time series cross-validation using crossval

March 26, 2020
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Time series cross-validation using crossval

Time series cross-validation using crossval

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Merge Covid-19 Data with Governmental Interventions Data

Merge Covid-19 Data with Governmental Interventions Data

Disclaimer: I am not an epidemiologist so I will abstain from analyzing the spread of the disease or estimating the effects of non-pharmaceutical interventions. As an applied economist, however,...

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What would a keyboard optimised for Luxembourguish look like?

What would a keyboard optimised for Luxembourguish look like?

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Re-Share: vtreat Data Preparation Documentation and Video

March 26, 2020
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I would like to re-share vtreat (R version, Python version) a data preparation documentation for machine learning tasks. vtreat is a system for preparing messy real world data for...

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Watercolors

March 26, 2020
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Watercolors

Moça do corpo douradoDo Sol de IpanemaO seu balançadoÉ mais que um poema(Garota de Ipanema, João Gilberto) Sometimes I think about the reasons why I spend so many time...

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COVID-19 Data and Prediction for Michigan

March 26, 2020
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COVID-19 Data and Prediction for Michigan

Every country is facing a global pandemic caused by COVID19 and it’s quite scary for everyone. Unlike any other pandemic we faced before, COVID19 is providing plenty of quality...

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Online R trainings: Learning data science – live and interactive

March 26, 2020
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Online R trainings: Learning data science – live and interactive

If concerts and theatre performances are cancelled, fitness studios are closed and offices are moved home because of the Corona danger, you don’t have to quit „live events“ completely....

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The Waffle House Index

March 26, 2020
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The Waffle House Index

Waffle House announced it was closing hundreds of stores this week due to SARS-Cov-2 (a.k.a COVID-19). This move garnered quite a bit of media attention since former FEMA Administrator...

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Quick Intro to Reproducible Example in R with reprex

March 26, 2020
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This video quickly introduces you to an amazing R package called reprex that helps in generating Reproducible Example which could be useful in a lot of places like Github...

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February 2020: “Top 40” New R Packages

March 25, 2020
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February 2020: “Top 40” New R Packages

One hundred sixty-four new packages made it to CRAN in February. Here are my “Top 40” picks in eleven categories: Computational Methods, Data, Genomics, Machine Learning, Mathematics, Medicine, Science,...

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Tuning random forest hyperparameters with #TidyTuesday trees data

March 25, 2020
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Tuning random forest hyperparameters with #TidyTuesday trees data

I’ve been publishing screencasts demonstrating how to use the tidymodels framework, from first steps in modeling to how to tune more complex models. Today, I’m using a #TidyTuesday dataset...

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Probability and Bayesian modeling [book review]

March 25, 2020
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Probability and Bayesian modeling [book review]

Probability and Bayesian modeling is a textbook by Jim Albert and Jingchen Hu that CRC Press sent me for review in CHANCE. (The book is also freely available in...

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Beacons of Light…

March 25, 2020
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Earlier today, DataIQ unveiled its list of the 100 most influential people in data-driven business, the DataIQ 100, and I’m... The post Beacons of Light… appeared first on Mango Solutions.

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Data Science Courses for Economists and Epidemiologists using RTutor

March 25, 2020
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Data Science Courses for Economists and Epidemiologists using RTutor

Were there no Corona virus pandemic, German Universities would regularly start the summer semester in around a month (soon after Eastern). Now, it seems likely that courses will be...

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How to Connect RStudio with Git (Github)

March 24, 2020
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This video explains how to connect your RStudio with Git (Github) for a better R Programming / Software Development Workflow. It could be as big as updating a package...

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Shiny apps with math exercises

Shiny apps with math exercises

It is often very useful to practise mathematics by automatically generated exercises. One approach is multiple choice quizzes (MCQ), but it turns out to be fairly difficult to generate authentic wrong...

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baRcodeR now on rOpenSci + online barcode PDF generation

March 24, 2020
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baRcodeR now on rOpenSci + online barcode PDF generation

Some major changes have occurred to baRcodeR since the last post on version 0.1.2 to ease the process of making printable labels like below. As of baRcodeR 0.1.5: After extremely helpful...

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New package RcppDate 0.0.1 now on CRAN!

March 24, 2020
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A new small package with a new C++ header library is now on CRAN. It brings the date library by Howard Hinnant to R. This library has been...

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rOpenSci community calls

March 24, 2020
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This is a short PSA about an R resource that I recently learnt about (and participated in): rOpenSci community calls. According to the website, these community calls happen quarterly,...

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Collider Bias, or: Are Hot Babes Dim and Eggheads Ugly?

March 24, 2020
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Collider Bias, or: Are Hot Babes Dim and Eggheads Ugly?

Correlation and its associated challenges don’t lose their fascination: most people know that correlation doesn’t imply causation, not many people know that the opposite is also true (see: Causation...

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