2016

Promoting Content in Africa

4 minute read

In the keynote at African Peering Forum (AfPIF) 2016 I presented the Promoting Content in Africa report written together with Michael Kende, these are the...

sigmoid package

less than 1 minute read

The sigmoid package makes it easy to become familiar with the way neural networks work by demonstrating the key concepts using straightforward code examples.

2015

Handcoding a Panel Model

2 minute read

The most basic panel estimation is the Pooled OLS model, this model combines all data across indices and performs a regular Ordinary Least Squares Estimation.

Hand Coding Instumental Variables

2 minute read

In a previous post we discussed the linear model and how to write a function that performs a linear regression. In this post we will use that linear model fu...

learNN package

1 minute read

The learNN package makes it easy to become familiar with the way neural networks work by demonstrating the key concepts using straightforward code examples....

Linear Model and Neural Network

2 minute read

In this short post I want to quickly demonstrate how the most basic neural network (no hidden layer) gives us the same results as the linear model.

WIOD data sets package

less than 1 minute read

The wiod package is now available on CRAN. The package contains the complete WIOD data sets, in a format compatible with the decompr and gvc package.

Hand Coding Categorical Variables

7 minute read

In last week’s posts we discussed handcoding a linear model and writing a convenient function for this, in today’s post we will take this a step further by i...

introducing diagonals

4 minute read

A new R package diagonals is now available on CRAN. The package implements several tools for dealing with fat diagonals on matrices, such as this one:

plot.ly

less than 1 minute read

Quick experiment on embedding plot.ly graphics.

diagonals in a network

2 minute read

A typical example in which diagonals can be helpful is Social Network Analysis. For example, if we use matrices to represent friendship perceptions between i...

gvc package on CRAN

less than 1 minute read

A new R package gvc is now available on CRAN. The package implements several global value chain indicators

2014

decompr on CRAN

1 minute read

I am proud to announce that after a few emails back and forth with Prof. Brian Ripley, which consisted mostly of me appologising for not following the proper...

Data Science Specialisation

3 minute read

Yesterday the Johns Hopkins School of Public Health published a post about their Data Science Specialisation on the online MOOC platform Coursera.

Learning R and Git

3 minute read

In yesterday’s post I discussed some of the principles I use to make my work replicable and - to an extent - reproducible. In this post I want to collect som...

Replicable Development Economics

1 minute read

The tagline of this blog says something replicable development economics using R and git. So far, I have posted gimmicks on new R tools such as shiny, rmarkd...

A jekyll blog

3 minute read

What are jekyll, markdown, and git(hub)? and why would you need all of this for a blog, in stead of a simple Blogspot of Wordpress page? The short answer is ...

The decompr package

21 minute read

I am proud to announce the beta version of the decompr R package. The package implements Export Decomposition using the Wang-Wei-Zhu (Wang, Wei, and Zhu 2013...

ggvis, shiny, and HTML5 slides

4 minute read

ggvis is wonderful new tool to create interactive graphics, which was build with Shiny apps in mind. In this post I will go over how you can create a Shiny a...