Articles by Daniel Emaasit

A Gallery of ggplot2 Extensions

July 28, 2016 | Daniel Emaasit

A couple of months ago, I announced the ggplot2-extensions website which tracks and lists extensions built on top of the popular R visualization package ggplot2. Now, I wanted to make it even easier for R users to filter and search for these extensions and so I have added a ...
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satRday Event in Cape Town

May 30, 2016 | Daniel Emaasit

This blog post was first published on EXEGETIC ANALYTICS‘s blog and kindly re-posted on Data Science Africa. We are planning to host one of the three inaugural satRday conferences in Cape Town during 2017. The R Consortium has committed to funding three of these events: one will be in Hungary, ... [Read more...]

The first official Johannesburg R Users’ Meetup!

February 27, 2016 | Daniel Emaasit

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 ... [Read more...]

Launching Data Science Africa Blog

January 26, 2016 | Daniel Emaasit

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 ... [Read more...]

Launching DataScience.Vegas Blog

February 23, 2015 | Daniel Emaasit

We are glad to announce the launch of DataScience.Vegas as a blog that aggregates all the events, news and information impacting the Las Vegas data science community. Our community has witnessed the birth and steady growth of several data science meetup groups with a very enthusiastic group of devoted ... [Read more...]

Classification and Regression Trees using R

January 7, 2015 | Daniel Emaasit

Recursive partitioning is a fundamental tool in data mining. It helps us explore the structure of a set of data, while developing easy to visualize decision rules for predicting a categorical (classification tree) or continuous (regression tree) outcome. Classification and regression trees can be generated through the rpart package. The ... [Read more...]

R and Science of Predictive Analytics

December 3, 2014 | Daniel Emaasit

Predictive analytics is the practice of extracting information from existing data sets in order to determine patterns and predict future outcomes and trends. We begun with an overview of prediction methods in R, and then discussed of some case studies of how R is being used for real world problems. ... [Read more...]

ggplot2: Elegant Graphics for Data Analysis

November 5, 2014 | Daniel Emaasit

ggplot2 is a plotting system for R, based on the grammar of graphics by Hadley Wickham. ggplot2 tries to take the good parts of base and lattice graphics and none of the bad parts. As a contributor to the package, Dr. Dennis Murphy was able to paint a clear picture ... [Read more...]

dplyr: Data Manipulation in R

October 7, 2014 | Daniel Emaasit

dplyr is a package for efficient data manipulation based on the grammar of data manipulation by Hadley Wickham. This package is efficient in manipulating data frames, data tables, databases and more. Dr. Dennis Murphy gave an interactive presentation of the elements that make dplyr the go-to package for data munging ... [Read more...]

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