Posted by Jack McKew on Thu 21 September 2023 in Python • Tagged with python, visualisation, machine learning, ai • 3 min read
Now that we've built & trained logistic regression and decision tree models to classify the iris dataset in these previous posts:
We found that they were both really good in their own regard (potentially overfitting), but what if we had two models …
Posted by Jack McKew on Tue 15 August 2023 in Python • Tagged with python, visualisation, machine learning, ai • 1857 min read
What are decision trees? It's a tool to assist with making decisions, in a tree like structure, similar to a flow chart; where each branch of the tree is a decision, usually made with some boundaries that decide which branch to follow. A basic decision tree could be of a …
Posted by Jack McKew on Sun 06 August 2023 in Python • Tagged with python, visualisation, machine learning, ai • 17 min read
In this post we'll go through a few things typical for any project using machine learning:
While this is a very high level overview of what we're about to do. This process is almost the same in any …
Posted by Jack McKew on Mon 29 May 2023 in Python • Tagged with python, visualisation • 4 min read
Have you ever wondered what the sequence to postcodes is? Ever wondered who your postcode neighbour was? I definitely have, so I've built a visualisation to do exactly that, and made it interactive for everybody to play around with!
Before we get into any of the processing, let's take a …
Posted by Jack McKew on Fri 08 January 2021 in Python • Tagged with python, visualisation • 3 min read
Typography is 'the style and appearance of printed matter', so in this post we're going to make some typography art with Matplotlib, we're going to make use of some text and colour the words which are colours themmselves (eg, the colour red will be coloured red). This is an interesting …
Posted by Jack McKew on Fri 01 January 2021 in Python • Tagged with python, software-development • 4 min read
An interesting problem came up recently, there was a piece of code absolutely full of the same function calls over and over again, meaning if anything ever need to change, that would have to be changed in over 500 places, not ideal. Thoughts go back to single responsbility, and don't …
Posted by Jack McKew on Fri 18 December 2020 in Data Science • Tagged with datascience, python • 4 min read
It's quite clear in today's age that the biggest companies in the world, make most of their profits from harvesting and productionalising their user's data. With privacy becoming more and more of a concern in everyday life as we become more connected, it's almost becoming a human right for our …
Posted by Jack McKew on Fri 16 October 2020 in Python • Tagged with python, software-development • 4 min read
Building software can be challenging, but maintaining it after that initial build can be even moreso. Being able to test the software such that it verifies the software behaves as expected is crucial in building robust software applications that users depend upon, being able to automate this testing is even …
Posted by Jack McKew on Fri 09 October 2020 in Data Science • Tagged with datascience, python • 4 min read
One of the utmost crucial parts in all programming languages is maintaining variables. We create, modify, compare, delete our variables to build more complex systems that eventually make up the software we use. This is typically done by using the = operator (eg x = 5 …
Posted by Jack McKew on Fri 21 August 2020 in Data Science • Tagged with datascience, python • 4 min read
The most common analytical task is to take a bunch of numbers in dataset and summarise it with fewer numbers, preferably a single number. Enter the 'average', sum all the numbers and divide by the count of the numbers. In mathematical terms this is known as the 'arithmetic mean', and …