Oracle Free Cloud Trial – Part 2: MySQL

This is Part 2 of my series of four blog articles recording my experiences trying out the Oracle Cloud using the 30 day / $300 Free Trial offer.  In this blog-post I cover provisioning a new MySQL database service.   The process for doing this is very simple and quick to achieve, as this blog post …

Oracle Free Cloud Trial – Part 1

This blog post is the first in a 4 part series where I document my experiences signing up for the 30 day free trial for Oracle Cloud services.    In subsequent posts, to follow shortly after this, I document creating a MySQL database cloud instance (Part 2), a 3 node Hadoop Cluster (Part 3) and …

Multivariable Regression with Python

The general linear model can be exteded from simple linear regression (which only has one predictor value) by adding other terms into the linear model. There is a nice blog article that digs deeper into some of the statistics here: http://connor-johnson.com/2014/02/18/linear-regression-with-python/ This article is a simpler layman's guide to multivariable linear regression with some basic techniques …

R Package Install from GitHub with DevTools

The background to this is I wanted to install an R package from GitHub as it wasn't available in CRAN.  DevTools is a great utility for doing this but when I tried to follow the instructions supplied it didn't work for me.  After some googling, looking at SO forums etc I ended up with a …

Simple Linear Regression with Galton

Introduction Although recent advances in Deep Learning neural networks get all the interest and air-time at the moment, many practical machine learning tasks can be achieved using simpler techniques. Linear Regression is relatively easy to understand and very effective for solving many prediction problems in an efficient way. This is a simple practical guide to …