R Improvements for Bio7 2.5
31.03.2017 The next release of Bio7 comes with many new R features and improvements which were integrated since the last release. In this post I like to present a subset...continue reading.
Monthly Archive: March 2017
Who is old? Visualizing the concept of prospective ageing with animated population pyramids
This post is about illustrating the concept of prospective ageing, a relatively fresh approach in demography to refine our understanding of population ageing. This visualization was created in collaboration with...continue reading.
Make ggplot2 purrr
Update: I’ve included another way of saving a separate plot by group in this article, as pointed out by @monitus. Actually, this is the preferred solution; using dplyr::do() is deprecated,...continue reading.
Make ggplot2 purrr
Update: I’ve included another way of saving a separate plot by group in this article, as pointed out by @monitus. Actually, this is the preferred solution; using dplyr::do() is deprecated,...continue reading.
Processing of GeoJson data in R
This blog post is about my recently released package on CRAN, geojsonR. The following notes and examples are based mainly on the package Vignette. “GeoJSON is an open standard format...continue reading.
Gradient Descent
Trying gradient descent for linear regression The best way to learn an algorith is to code it. So here it is, my take on Gradient Descent Algorithm for simple linear...continue reading.
RStudio Connect 1.4.4.1
We’re excited to announce the release of RStudio Connect: version 1.4.4.1. This release includes the ability to manage different versions of your work on RStudio Connect. Rollback / Roll Forward...continue reading.
Analyzing Accupedo step count data in R: Part 2 – Adding weather data
In my last set of posts, I wrote about analyzing data from the Accupedo step counter app I have on my phone. In this post, I’ll talk about some additional...continue reading.
Introducing brotools
I’m happy to announce my first R package, called brotools. This is a package that contains functions that are specific to my needs but that you might find also useful....continue reading.
Introducing brotools
I’m happy to announce my first R package, called brotools. This is a package that contains functions that are specific to my needs but that you might find also useful....continue reading.
Economics chapter added to “Empirical software engineering using R”
The Economics chapter of my Empirical software engineering book has been added to the draft pdf (download here). This is a slim chapter, it might grow a bit, but I...continue reading.
Fitting Bayesian Linear Mixed Models for continuous and binary data using Stan: A quick tutorial
I want to give a quick tutorial on fitting Linear Mixed Models (hierarchical models) with a full variance-covariance matrix for random effects (what Barr et al 2013 call a maximal...continue reading.
Estimating Conway-Maxwell-Poisson Regression in SAS
Conway-Maxwell-Poisson (CMP) regression is a flexible way to model frequency outcomes with both under-dispersion and over-dispersion. In SAS, CMP regression can be estimated with COUNTREG procedure directly or with NLMIXED...continue reading.
R<-Slovakia meetup started to build community in Bratislava
On 22. March a first special R related meetup called R<-Slovakia took place. As the name of the meetup group implies, it is based in Slovakia, in its capital -...continue reading.
Perform pairwise Wilcoxon test, classify groups by significance and plot results
This post is the result of work performed in collaboration with my colleague Eleonora Paparelli (who actually did most of the work!). We wanted to compare several distributions using Wilcoxon...continue reading.
A comprehensive Linux command cheat sheet
I think that it doesn’t matter what operating system you use — as long as you know your OS of choice well!:bowtie: This is a Linux command cheat sheet covering...continue reading.
Lesser known purrr tricks
purrr is a package that extends R’s functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some of the...continue reading.
Lesser known purrr tricks
purrr is a package that extends R’s functional programming capabilities. It brings a lot of new stuff to the table and in this post I show you some of the...continue reading.
Data Visualization – Part 2
A Quick Overview of the ggplot2 Package in R While it will be important to focus on theory, I want to explain the ggplot2 package because I will be using...continue reading.
R, shiny and source()
This one cost me more time to figure out than it should have. The reason being, it turns out that I never properly understood what the source() function does. So...continue reading.
