Recently I bumped up some errors using machine learning libraries, I guess it is related to the MacBook M1 chip. This pushes me to replace the battery of my old MacBook Pro. Without a proper battery, that MacBook can’t be traded in, and hard to resell too. My problem is…

OpenAI has created the Gym and Stable Baselines library to make reinforcement learning easy to use. I’d like to recap how to use it with one of the classic control problems — Mountain Car Continuous. The Colab notebook is here https://colab.research.google.com/drive/1m5Ppsrv6B5maUJ-vMgbZtMeSxqFfUVSP?usp=sharing 1. Background (1) Deep Reinforcement Learning (RL) RL was used to…

Python provides a build-in “venv” module to create a lightweight virtual environment with the current Python version. However, since certain machine learning libraries only work with specific Python versions, you want to create environments with different Python versions. There are three common ways to create a virtual environment. …

I wrote about using Firebase to host the website before (Host a BI report using ReactJs+Firebase with Auth). In order to update the website, some commands have to be executed everytime you update the codes. Although they are just a few lines of commands, it is still saving a bit…

As everything is going online, tracking and analysing website traffic is the key to a business or a blogger. But where to start, what should I track and monitor in detail? Well, website traffic comes from paid advertisement and unpaid search ( (organic traffic)). This is why SEO (Search Engine…

I wrote a post about the data analyst roadmap earlier this year, and I know the basic skills this job required. However, knowing what skills are needed is not enough. In my opinion, as a junior data analyst, getting a certificate could be a good way to learn and reflect…

I want to print this character, so I researched it this morning. Here is the plan. I need to extract, edit, print and colour it. I think it will take 3–6 months(learn to use Blender and 3D printer), depending on my spare time. 1. Extract the model It’s a popular multi-player role-playing game called…

Based on the data exploration in the last post, applying ML to the processed data is not very difficult. This is because there are mature python libraries that provide built models. We can import those models and use processed data to train/fit the model. Three well-known libraries are Pytorch, TensorFlow…

Analysing Pokemon, one of the most loved animations, is a perfect start for beginners like me. We want to improve our battle performance based on the analysis. The analysis starts by asking the right questions like any other data project, Who wins the battle? Who loses? What are the winners…