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Key Takeaways from the 1st Virtual DataVizLive

The recent DataVizLive was held entirely online, due to COVID and like the rest of the world, they had to quickly learn to do things remotely-first. Although it wasn't faultless, it was still very engaging and filled with experienced speakers, who delivered practical visualisations. In this post, I will share my key takeaways from the event!

July 23rd, 2020|

Hypothesis Testing of mean-based samples

In part two of Introduction to Hypothesis Testing series we outlined some code samples for how to perform z-tests on proportion-based samples. This post will now go into more detail for mean-based samples.

July 16th, 2020|

Towards better functional programming in Java with Vavr

Despite being 62 years old, functional programming is doing very well, hasn't been forgotten and is a paradigm that is used daily. In the article, I have included basic concepts regarding FP and briefly presented the use of selected elements of the Vavr library, which are only a brief introduction to the whole range of solutions and approaches that can be implemented.

July 9th, 2020|

Selenide: a powerful testing framework

Many testers think about starting their adventure in writing automated test scripts. For anyone interested in commencing their journey with test automation, I would highly recommend starting with Selenide. Why Selenide? Selenide provides simple locators, built-in waits, readable methods and actions. It can be a great start for beginners or a new tool for advanced automation testers.

June 19th, 2020|

Quantitative analysis is as subjective as qualitative analysis

When you analyse data you’re making lots of choices about what tools to use, and what the results mean. The aim of this post is to make clear the nature of the kinds of choices an analyst will make when examining data, and what responsibility is on you - the reader - to understand these choices before accepting the results of someone else’s analysis.

May 28th, 2020|

Apache Solr and Greedy Regex

Knowing where the problem lies is only a half-success. The other half is having the knowledge to fix it. Recently our colleague Adam was tasked with getting to the bottom of an issue in one part of a system we were developing for a client. It required quite a bit of detective work, some experimentation, and ultimately learning. Here's the story of his journey.

April 21st, 2020|

The Show Must Go On: A List of Upcoming Online Tech Events

It’s great to see the experts in all fields taking their events online over the past few weeks. There are plenty of excellent events out there, with new ones popping up every day. We gathered a list of some upcoming online-events below. We hope you find it beneficial!

April 1st, 2020|

Hypothesis Testing of proportion-based samples

In part one of this series we introduced the concept of hypothesis testing, and described the different elements that go into using the various tests. It ended with a cheat-sheet to help you choose which test to use based on the kind of data you’re testing. In this second post we will go into more detail on proportion-based samples.

March 20th, 2020|