3D Terrain in Python

Posted by Jack McKew on Fri 24 January 2020 in Python • Tagged with python, visualisation, generative • 21 min read

Generating & Visualising 3D Terrains in Python

Today, let's put together a 3D visualisation of randomly generated 'terrain' with Python. Data visualisation is an absolutely key skill in any developers pocket, as communicating both data, analysis and more is thoroughly simplified through the use of graphs. While a picture tells a …


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Intro To GeoPandas

Posted by Jack McKew on Wed 15 January 2020 in Python • Tagged with python, visualisation • 6 min read

Pandas for geospatial data

Personally whenever I am faced with a problem that involves analysing geospatial data, GeoPandas is the first tool/package I reach for. Extending on the Pandas dataframe data structure, GeoPandas brings functionality for working with points, polygons and more out of the box. This post is …


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Linear Regression: Under the Hood with the Normal Equation

Posted by Jack McKew on Sun 25 August 2019 in Data Science • Tagged with python • 3 min read

Let's dive deeper into how linear regression works.

Linear regression follows a general formula:

$$ \hat{y} = \theta_0 + \theta_1x_1 + \theta_2x_2 + \cdots + \theta_nx_n $$

Where \(\hat{y}\) is the predicted value, \(n\) is the number of features, \(x_i\) is the \(i^{th}\) feature value and \(\theta_n\) is the \(n^{th}\) model parameter. This …


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Looking for Patterns in City Names & Interactive Plotting

Posted by Jack McKew on Fri 16 August 2019 in Python • Tagged with python, datascience • 5 min read

Recently, I was traveling around New Zealand, and noticed in the Maori language they use letters back to back a lot like in the original Maori name for Stratford ("whakaahurangi"). So as any normal person does, I thought, well what town has the most repeated letters, and the idea for …


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What is MongoDB?

Posted by Jack McKew on Fri 03 May 2019 in Software Development • Tagged with database, mongodb • 3 min read

Recently after looking for a different flavour of database apart from MySQL (which is what I am personally use to), I had always heard about MongoDB. So after some investigation, I found that MongoDB has a platform MongoDB University to familiarize yourself with their product.

I completed their very first …


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Efficient Frontier for Balancing Portfolios

Posted by Jack McKew on Fri 26 April 2019 in Python • Tagged with python, data, analysis • 5 min read

Following last 2 weeks’ posts (Python for the Finance Industry & Portfolio Balancing with Historical Stock Data), we now know how to extract historical records on stock information from the ASX through an API, present it in a graph using matplotlib, and how to balance a portfolio using randomly generated portfolios …


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Portfolio Balancing with Historical Stock Data

Posted by Jack McKew on Fri 19 April 2019 in Python • Tagged with finance, python • 4 min read

Following last weeks' post (Python for the Finance Industry). This post is to demonstrate a method of determining an optimized portfolio based on historical stock price data.

First of all while attempting to tackle this problem, I stumbled across many very informative articles in which based on what I learned …


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Python for the Finance Industry

Posted by Jack McKew on Fri 12 April 2019 in Python • Tagged with python, finance • 3 min read

This is the first post in a series of posts dedicated for demonstrating how Python can be applied in the finance industry. Personally, the first thing that comes to mind when I think of the finance industry is the stock market. For fellow Australians, our main stock exchange is the …


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