Does Australia need More Fires (but the Right Kind)? A Multi-Agent Simulation

January 28, 2020
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Does Australia need More Fires (but the Right Kind)? A Multi-Agent Simulation

We have all watched with great horror the catastrophic fires in Australia. Over many years scientists have been studying simulations to understand the underlying dynamics better. They tell us, that “what Australia needs is more fires, but of the right kind”. What do they mean by that? One such simulation of fire is based on … Continue reading "Does...

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Call BEAST2 for Bayesian evolutionary analysis from R

Call BEAST2 for Bayesian evolutionary analysis from R

babette 1 is a package to work with BEAST2 2, a software platform for Bayesian evolutionary analysis from R. babette is a spin-off of my own academic research. As a PhD I...

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R as a tool for Systems Administration

January 27, 2020
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When talking about languages to use in Production in data science, R is usually not part of the conversation and if it is, it's referenced as a secondary language....

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On the relationship of the sample size and the correlation

January 27, 2020
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On the relationship of the sample size and the correlation

This has bugged me for some time now. There is a “common knowledge” that the correlation size is dependent on the variability, i.e. higher the variability – higher the...

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Going to rstudio::conf? Meet Business Science, Accelerate Your Career

January 26, 2020
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Going to rstudio::conf? Meet Business Science, Accelerate Your Career

I can’t tell you how excited I am to be a sponsor at rstudio::conf(2020) this year. This is my 2nd year attending, and my 1st time as a sponsor....

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Survival Analysis – Fitting Weibull Models for Improving Device Reliability in R

January 26, 2020
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Survival Analysis – Fitting Weibull Models for Improving Device Reliability in R

It’s time to get our hands dirty with some survival analysis! In this post, I’ll explore reliability modeling techniques that are applicable to Class III medical device testing. My...

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rstudio::conf 2020 Workshops

January 26, 2020
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rstudio::conf 2020 Workshops

rstudio::conf 2020 got underway today with a huge training event featuring eighteen workshops taught by some of the most experienced and sought after instructors in the R Community. The workshops...

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Chi-square test of independence in R

January 26, 2020
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Chi-square test of independence in R

Introduction Example Data Chi-square test of independence Conclusion and interpretation Introduction This article explains how to perform the Chi-square test of independence in R and how to interpret its results. To learn more about how...

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Lessons Learned from My First MiniCompetion

January 26, 2020
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Editor’s Note: This post does not contain ANY code but describes concepts for data science which are language agnostic. “We do not learn from experience… we learn from reflecting on...

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The significance of gender on the salary in Sweden, a comparison between different occupational groups

The significance of gender on the salary in Sweden, a comparison between different occupational groups

In my last post, I found that the interaction between the different predictors has a significant impact on the salary of engineers. Is the significance of the interactions on...

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Code examples in the R package manuals

January 26, 2020
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After posts exploring READMEs, URLs in DESCRIPTION, today we shall look at another important aspect of documentation: examples in the manual pages of your functions! Why write them, how...

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Programming with data.table

January 26, 2020
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Programming with data.table

getting started multiple bare variable names in data.table functions - Flexible functions in data.table I’m getting slightly more experienced with data.table, and I really like it. My...

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MCMC, with common misunderstandings

January 26, 2020
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MCMC, with common misunderstandings

As I was asked to write a chapter on MCMC methods for an incoming Handbook of Computational Statistics and Data Science, published by Wiley, rather than cautiously declining!, I...

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wrapr 1.9.6 is now up on CRAN

January 26, 2020
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wrapr 1.9.6 is now up on CRAN

wrapr 1.9.6 is now up on CRAN. We unfortunately usually forget to say this. A big thank you to the staff and volunteers at CRAN. As part of this...

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Software Updates: bootnet 1.3 and psychonetrics 0.5

January 26, 2020
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Software Updates: bootnet 1.3 and psychonetrics 0.5

This post was written by Sacha Epskamp. Tomorrow our biannual network school will start again (see here for last year’s materials), which is also the time I update all...

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Dynamic discrete choice models, reinforcement learning and Harold, part 1

Dynamic discrete choice models, reinforcement learning and Harold, part 1

Introduction I want to write about an Econometrica paper written in 1987 (jstor link) by John Rust, currently Professor of Economics at Georgetown University, paper which has been on my mind...

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Webscraping with R – from messy & unstructured to blisfully tidy

January 25, 2020
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Webscraping with R – from messy & unstructured to blisfully tidy

I stopped caring about the estimates that occasionally raid the internet about how much time data scientists spend on data wrangling VS modelling. The answer is: probably a lot...

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How to create a timeline of your CV in R

January 25, 2020
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How to create a timeline of your CV in R

Introduction Minimal reproducible example How to personalize it Introduction In this article, I show how to create a timeline of your CV in R. A CV timeline illustrates key information about your education,...

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What `R` you? (R list in python)

January 25, 2020
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Previously, we uncovered what are R vectors in python. In this post, we will convert R lists in python. A R list is a python … Like R vectors, it depends....

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Posts

January 25, 2020
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. (You can report issue about the content on this page here) Want to share your content on...

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R Shiny Application Split Into Multiple Files

January 25, 2020
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R Shiny Application Split Into Multiple Files

Create an R Shiny Application using multiple files framework to use R Shiny with large applications

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Top 10 Most Valuable Data Science Skills in 2020

Top 10 Most Valuable Data Science Skills in 2020

The first month of the new decade is almost at an end. It’s also “job-hunting” time when students start looking for internships and employees think about switching roles and...

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Analysing the effectiveness of tennis tournament seeding by @ellis2013nz

January 25, 2020
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Analysing the effectiveness of tennis tournament seeding by @ellis2013nz

So, an exploration of how tennis tournament seeding and bracketing impacts on the end result has percolated to the top of my to-do list, inspired by the Melbourne Open...

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RcppArmadillo 0.9.800.4.0

January 24, 2020
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RcppArmadillo 0.9.800.4.0

Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed and ease of use with a syntax deliberately close...

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Portfolio starter kit

January 24, 2020
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Portfolio starter kit

Say you’ve built a little nest egg thanks to some discipline and frugality. And now you realize that you should probably invest that money so that you’ve got something...

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Scotland’s Most Popular Babynames

January 24, 2020
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Downloading the data Shiny App I recently saw this great post on Nathan Yau’s FlowingData website which guesses a person’s name based on what the name starts with. It also needs...

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A package for analysing signed networks

January 24, 2020
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A package for analysing signed networks

This post introduces the R package signnet, available on CRAN, which implements several methods to analyze signed networks. Signed networks include two types of relations, positive and negative ones (say friends...

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Google Trends Email Automation with Shiny

January 23, 2020
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Google Trends Email Automation with Shiny

Google Trends is a FREE tool to gain insights about Google Search Terms your organization cares about. What if you could streamline the process of analyzing keyword search trends...

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ABS time series as tsibbles

January 23, 2020
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library(tidyverse) library(tsibble) library(readabs) library(raustats) Australian data analysts will know how frustrating it is to work with time series data from the Australian Bureau of Statistics. They are stored as multiple ugly Excel files...

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