In classical statistics, linear regression is regarded as the ‘gateway to predictive modelling’. For decades students have been taught about regression from theory to practice simply because it still one of the most versatile and simple ways to understand and predict the effect of key factors on critical outcomes. For instance, using regression you …
In this video Jarlath Quinn shows how you can move beyond simple linear regression to model curvilinear relationships using techniques such as variable transformations and quadratic regression before finally exploring how log-log regression can be used to model price elasticity of demand.
In this two-part video series Jarlath Quinn shows how to perform Moderation and Mediation analysis using the PROCESS macro developed by Andrew F. Hayes P.hD. In Part 1 Jarlath explores Moderation analysis. This form of analysis enables analysts to identify interaction effects that alter the relationship between a dependent and independent variable. For example, the relationship between salary and …
In this two-part video series Jarlath Quinn shows how to perform Moderation and Mediation analysis using the PROCESS macro developed by Andrew F. Hayes P.hD. In Part 2 Jarlath looks at Mediation analysis. This is an analytical approach used to test if a third factor could represent the underlying cause of a relationship between an independent and dependent variable. …
Smart Vision Europe recently announced an exciting new partnership with DataRobot, a rapidly rising player in the data science market with ambitions to be the de-facto leader of cloud-based AI for all. Over the past few months, I’ve been playing around with the platform, and I must say I am thoroughly impressed with what I …
Cloud AI at the cutting edge: taking DataRobot for a spin Read More »
IBM has just announced the general availability of IBM SPSS Statistics 28.0.1. This modification release introduces new statistical tests, enhancements to existing procedures and functional enhancements that will improve everyday usability. In this blog post we outline some of the new features and functionality. New statistical procedures and algorithm enhancements Kernel Ridge Regression As part …
SPSS Modeler is a robust data science software for professional analysts and data scientists. The software scales from supporting line-of-business predictive analysis to enterprise-scale implementation.Consisting of IBM SPSS Modeler Desktop 18.3 and IBM SPSS Modeler Server 18.3, SPSS Modeler delivers a robust predictive analytics solution for a holistic approach to predictive analytics. It brings predictive intelligence to decisions made by individuals, …
IBM is about to release the latest version of SPSS Statistics. Here’s a summary of some of the new enhancements that existing users can look forward to. Meta-analysis Meta-analysis is a well-established analytical approach that combines the results from a range of studies with a view to estimating the effect size of the treatment in question. …
A fascinating recent report by MIT Sloan in collaboration with BCG has confirmed what many industry insiders have known for years: only a small minority of companies manage to make their initial AI projects succeed. Based on global survey of more than 3,000 managers and scholars in 29 industries, the report’s authors discovered that only …
In this series of ‘eat your greens‘ posts looking at core statistical concepts in more detail, we have looked closely at what a test of statistical significance actually is. In particular, we have focused on how to interpret the statistical probability value that various tests generate. This value, often labelled ‘P=’, ‘Prob’ or ‘Sig.’ in …
