Developing a complex R Shiny app – the good, the bad and the ugly

February 27, 2020
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Developing a complex R Shiny app – the good, the bad and the ugly

Together with Clara Bicalho (UC Berkeley) and Sisi Huang (WZB), I recently developed a web application that acts as a … Read More →

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MLOPS for R with Azure Machine Learning

February 26, 2020
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MLOPS for R with Azure Machine Learning

The video recording of my RStudio::conf talk, MLOPS for R with Azure Machine Learning, is now available for streaming thanks to the fine folks at RStudio. The talk begins...

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chain of lynx and drove of hares

February 26, 2020
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chain of lynx and drove of hares

A paper (and an introduction to the paper) in Nature this week seems to have made progress on the existence of indefinite predator-prey cyles. As in the lynx/hare dataset...

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A New Baby Boom Poster

February 26, 2020
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A New Baby Boom Poster

I wanted to work through a few examples of more polished graphics done mostly but perhaps not entirely in R. So, I revisited the Baby Boom visualizations I made...

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Testing REST APIs with Newman

February 26, 2020
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Testing REST APIs with Newman

Newman and Postman form a great team to test your REST API. I will give you a quick roundtrip through both tools and their interplay: define requests and tests,...

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R for Excel Users: Pivot Tables, VLOOKUPs in R

February 25, 2020
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R for Excel Users: Pivot Tables, VLOOKUPs in R

New business and financial analysts are finding R every day. Most of these new userRs (R users) are coming from a non-programming background. They have ample domain experience in...

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Including Function Factories in an R Package: Using Collate

February 25, 2020
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Introduction This week I was working on a package which included a function factory. A function factory is a function which returns a function. The problem I faced was that...

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The p-direction: A Bayesian equivalent of the p-value?

February 25, 2020
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The p-direction: A Bayesian equivalent of the p-value?

The Bayesian framework is powerful and allows for an incredible amount of flexibility and control over your analysis. That being said, newcomers often struggle with a lot of new...

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New xgboost defaults

February 25, 2020
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New xgboost defaults

xgboost is the most famous R package for gradient boosting and it is since long time on the market. In one of my publications, I created a framework for...

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3 recommended books on learning R

February 24, 2020
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3 recommended books on learning R

I sometimes get asked how I got started learning R. I thought I would use this post to go through a few books I read along the way which...

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R Robustreg Package Downloads

February 24, 2020
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R Robustreg Package Downloads

I built robustreg in 2006 and at the time the major stat packages did not have a robust regression available.  Below are graphs of weekly and cumulative downloads from...

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Book slides – Analyzing Financial and Economic Data with R

February 24, 2020
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The slides for my newly released book Analyzing Financial and Economic Data with R are finally ready! I apologize for keep you guys waiting. The slides are available as independent...

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RStudio 1.3 Preview: Integrated Tutorials

February 24, 2020
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RStudio 1.3 Preview: Integrated Tutorials

This blog post is part of a series on new features in RStudio 1.3, currently available as a preview release. We’re excited to announce that RStudio v1.3 will gain a...

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opentripplanner: Fast and Easy Multimodal Trip Planning in R with OpenTripPlanner

With services like Google Maps, finding the fastest route from A to B has become quick, cheap, and easy. Not just for driving but walking, cycling and public transport...

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multiplying the bars

February 24, 2020
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The latest Riddler makes the remark that the expression |-1|-2|-3| has no unique meaning (and hence value) since it could be | -1x|-2|-3 | = 5   or   |-1| –...

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January 2020: “Top 40” New R Packages

February 23, 2020
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January 2020: “Top 40” New R Packages

One hundred forty-seven new packages made it to CRAN in January. Here are my “Top 40” picks in nine categories: Computational Methods, Genomics, Machine Learning, Mathematics, Medicine, Statistics, Time...

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Le Monde puzzle [#1132]

February 23, 2020
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Le Monde puzzle [#1132]

A vaguely arithmetic challenge as Le weekly Monde current mathematical puzzle: Given two boxes containing x and 2N+1-x balls respectively. If one proceeds by repeatedly transferring half the balls...

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Synthetic micro-datasets: a promising middle ground between data privacy and data analysis

February 22, 2020
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Synthetic micro-datasets: a promising middle ground between data privacy and data analysis

Intro: the need for microdata, and the risk of disclosure Survey and administrative data are essential for scientific research, however accessing such datasets can be very tricky, or even impossible. In...

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The significance of the sector on the salary in Sweden, a comparison between different occupational groups, part 2

February 22, 2020
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The significance of the sector on the salary in Sweden, a comparison between different occupational groups, part 2

In my last post, I examined the significance of the sector on the salary for different occupational groups using statistics from different regions. In previous posts I have shown...

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digest 0.6.25: Spookyhash bugfix

February 22, 2020
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And a new version of digest is getting onto CRAN now, and to Debian shortly. digest creates hash digests of arbitrary R objects (using the md5, sha-1, sha-256, sha-512,...

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Nifty Upcoming Enhancements to unpack/to

February 22, 2020
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We have some really nifty upcoming enhancements to wrapr unpack/to. One of the new notations is the use of := as an alternate assignment operator for unpack/to. This lets...

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Body Mass Index by @ellis2013nz

February 22, 2020
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Body Mass Index by @ellis2013nz

BMI has an expectations management problem Body Mass Index (BMI) is an attempt to give a quick back-of-envelope answer to the question “if someone weighs W kg, is that a...

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RcppSimdJson 0.0.2: First Update!

February 22, 2020
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Following up on the initial RcppSimdJson release, a first updated arrived on CRAN yesterday. RcppSimdJson wraps the fantastic simdjson library by Daniel Lemire which truly impressive. Via some very...

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R is turning 20 years old next Saturday. Here is how much bigger, stronger and faster it got over the years

February 22, 2020
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R is turning 20 years old next Saturday. Here is how much bigger, stronger and faster it got over the years

Introduction It is almost the 29th of February 2020! A day that is very interesting for R, because it marks 20 years from the release of R v1.0.0, the first...

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relgam: Fitting reluctant generalized additive models

February 22, 2020
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relgam: Fitting reluctant generalized additive models

I’m proud to announce that my latest research project, reluctant generalized additive modeling (RGAM), is complete (for now)! In this post, I give a brief overview of the method:...

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The next package release into AWS Athena

February 21, 2020
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The next package release into AWS Athena

RBloggers|RBloggers-feedburner RAthena 1.7.1 and noctua 1.5.1 package versions have now been released to the CRAN. They both bring along several improvements with the connection to AWS Athena, noticeably the performance...

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Correlogram in R: how to highlight the most correlated variables in a dataset

February 21, 2020
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Correlogram in R: how to highlight the most correlated variables in a dataset

Introduction Correlation matrix Correlogram Correlation test Code Photo by Pritesh Sudra Introduction Correlation, often computed as part of descriptive statistics, is a statistical tool used to study the relationship between two variables, ...

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Survey: What Degree is Best for Data Science?

February 21, 2020
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Survey: What Degree is Best for Data Science?

  TL;DRJust answer 4 questions about best degree for Data Science here: https://www.surveymonkey.com/r/7FGGWS7 No doubt asking the question "What's the best degree for Data Science?" one won't expect unified or...

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BIMI Up, Scotty! A look at Brand Indicators for Message Identification (BIMI) Adoption with R and the Alexa Top 1m

February 21, 2020
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BIMI Up, Scotty! A look at Brand Indicators for Message Identification (BIMI) Adoption with R and the Alexa Top 1m

It seems that the need for MX, DKIM, SPF, and DMARC records for modern email setups were just not enough acronyms (and setup tasks) for some folks, resulting in...

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