The Mathematics of Machine Learning

This post was first published on my Linkedin page and posted here as a contributed post. In the last few months, I have had several people contact me about their enthusiasm for venturing into the world of data science and using Machine Learning (ML) techniques to probe statistical regularities and build impeccable data-driven products. However, I’ve observed that some actually lack the…

First Accra R-User meetup a success!

Accra’s inaugural R-session took place on Wednesday 13 April, in the Meltwater Entrepreneurial School of Technology (MEST). This first meeting was to identify the proficiency level of the community, and to showcase exploratory data analysis using ggplot2, dplyr, and tidyr. Yes, R is more than the Hadleyverse, but it’s probably the easiest to understand I think. The script can be found on…

Getting started… first steps into R

We all started R from somewhere. Some of us progressed quickly and some of us struggled and suffered through every step. But we all started. This post is written for the absolute beginners, and details how to install R, RStudio and how to deal with package installation problems. Download and install the latest version of R (https://cran.r-project.org/bin/windows/base/ ) Download and…

The first official Johannesburg R Users’ Meetup!

We’ve been working hard on obtaining sponsors for the community and setting up a support structure for knowledge sharing and connecting our members. Our first Johannesburg R User Meetup (on the 8th March) is being sponsored by Microsoft and will be taking place at their Bryanston Campus. Our confirmed speakers include: Marty Epstein Head of Telematics – Discovery Insure Marty will be…

Nairobi Data Science Meet Up:Finding deep structures in data with Chris Orwa

I sat down with former rugby school captain whose rugby career was cut short by a shoulder injury while playing for Black Blad at Kenyatta University. It is always a great pleasure to talk to someone who is extremely passionate about what he does and his passion for Data Science was evident during my chat with “BlackOrwa” at iHub Nairobi…

Webinar: Getting Started with Spatial Data Analysis with R

I am glad to announce that I shall be presenting a live webinar with Domino Data Labs on February 24, 2016 from 11:00 – 11:30 AM PST: Getting Started with Spatial Data Analysis with R. If you are interested or know someone interested in learning how to manipulate spatial and spatial-temporal data with R, please send them along. Here is the…

An R Package for the “controversial” counts of registered voters in Uganda

Some members of the Ugandan media have claimed that counts of registered voters for the 2016 General Election, contain almost 20,000 “ghost voters”.  This is according to their analyses (using excel) of data released by the Uganda Electoral Commission (EC), the body charged with conducting a free and fair election. With voting just 8 days away, I wanted to compile this…

Durban R Users Group Meetup: 24 February 2016 @ The Green Door

We’re kicking off the inaugural meeting of the Durban R Users Group with a live video presentation by Andrie de Vries (Senior Programme Manager, R Community Projects at Microsoft / Revolution Analytics). Andrie will be talking about “Demonstration of using R in the cloud together with Azure Machine Learning”. If you’ve kept up with Microsoft’s recent contributions to R then…

Sentiment Analysis of Uganda Presidential Debate – Using R and Twitter data

Introduction to Digital democracy is here. Social media platforms like Facebook and Twitter are providing inexpensive ways for individuals to engage on political issues, therefore providing a wealth of data that provides insight on an underlying trend that spans both geography and demography. Outbox Uganda carried out a sentiment analysis of Uganda’s first ever presidential debate last month and generated…

Tracking ggplot2 Extensions

The purpose of this blog post is to inform R users of a website that I created to track and list ggplot2 extensions. The site is available at: http://ggplot2-exts.github.io. The purpose of this site is to help other R users easily find ggplot2 extensions that are coming in “fast and furious” from the R community. If you have developed or intend on developing…

Launching Data Science Africa Blog

We are glad to announce the launch of datascience-africa.org as a blog that aggregates all the events, news and information impacting the data science community in some of the major cities in Africa. Our community has witnessed the birth and steady growth of several data science meetup groups with a very enthusiastic group of devoted members. We are a community of data scientists,…