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